Implement frontend login logic with >90% coverage

23 files changed, 2452 insertions, 36 deletions

diff --git a/frontend/coverage/base.css b/frontend/coverage/base.css
new file mode 100644
index 0000000..f418035
--- /dev/null
+++ b/frontend/coverage/base.css
@@ -0,0 +1,224 @@
+body, html {
+  margin:0; padding: 0;
+  height: 100%;
+}
+body {
+    font-family: Helvetica Neue, Helvetica, Arial;
+    font-size: 14px;
+    color:#333;
+}
+.small { font-size: 12px; }
+*, *:after, *:before {
+  -webkit-box-sizing:border-box;
+     -moz-box-sizing:border-box;
+          box-sizing:border-box;
+  }
+h1 { font-size: 20px; margin: 0;}
+h2 { font-size: 14px; }
+pre {
+    font: 12px/1.4 Consolas, "Liberation Mono", Menlo, Courier, monospace;
+    margin: 0;
+    padding: 0;
+    -moz-tab-size: 2;
+    -o-tab-size:  2;
+    tab-size: 2;
+}
+a { color:#0074D9; text-decoration:none; }
+a:hover { text-decoration:underline; }
+.strong { font-weight: bold; }
+.space-top1 { padding: 10px 0 0 0; }
+.pad2y { padding: 20px 0; }
+.pad1y { padding: 10px 0; }
+.pad2x { padding: 0 20px; }
+.pad2 { padding: 20px; }
+.pad1 { padding: 10px; }
+.space-left2 { padding-left:55px; }
+.space-right2 { padding-right:20px; }
+.center { text-align:center; }
+.clearfix { display:block; }
+.clearfix:after {
+  content:'';
+  display:block;
+  height:0;
+  clear:both;
+  visibility:hidden;
+  }
+.fl { float: left; }
+@media only screen and (max-width:640px) {
+  .col3 { width:100%; max-width:100%; }
+  .hide-mobile { display:none!important; }
+}
+
+.quiet {
+  color: #7f7f7f;
+  color: rgba(0,0,0,0.5);
+}
+.quiet a { opacity: 0.7; }
+
+.fraction {
+  font-family: Consolas, 'Liberation Mono', Menlo, Courier, monospace;
+  font-size: 10px;
+  color: #555;
+  background: #E8E8E8;
+  padding: 4px 5px;
+  border-radius: 3px;
+  vertical-align: middle;
+}
+
+div.path a:link, div.path a:visited { color: #333; }
+table.coverage {
+  border-collapse: collapse;
+  margin: 10px 0 0 0;
+  padding: 0;
+}
+
+table.coverage td {
+  margin: 0;
+  padding: 0;
+  vertical-align: top;
+}
+table.coverage td.line-count {
+    text-align: right;
+    padding: 0 5px 0 20px;
+}
+table.coverage td.line-coverage {
+    text-align: right;
+    padding-right: 10px;
+    min-width:20px;
+}
+
+table.coverage td span.cline-any {
+    display: inline-block;
+    padding: 0 5px;
+    width: 100%;
+}
+.missing-if-branch {
+    display: inline-block;
+    margin-right: 5px;
+    border-radius: 3px;
+    position: relative;
+    padding: 0 4px;
+    background: #333;
+    color: yellow;
+}
+
+.skip-if-branch {
+    display: none;
+    margin-right: 10px;
+    position: relative;
+    padding: 0 4px;
+    background: #ccc;
+    color: white;
+}
+.missing-if-branch .typ, .skip-if-branch .typ {
+    color: inherit !important;
+}
+.coverage-summary {
+  border-collapse: collapse;
+  width: 100%;
+}
+.coverage-summary tr { border-bottom: 1px solid #bbb; }
+.keyline-all { border: 1px solid #ddd; }
+.coverage-summary td, .coverage-summary th { padding: 10px; }
+.coverage-summary tbody { border: 1px solid #bbb; }
+.coverage-summary td { border-right: 1px solid #bbb; }
+.coverage-summary td:last-child { border-right: none; }
+.coverage-summary th {
+  text-align: left;
+  font-weight: normal;
+  white-space: nowrap;
+}
+.coverage-summary th.file { border-right: none !important; }
+.coverage-summary th.pct { }
+.coverage-summary th.pic,
+.coverage-summary th.abs,
+.coverage-summary td.pct,
+.coverage-summary td.abs { text-align: right; }
+.coverage-summary td.file { white-space: nowrap;  }
+.coverage-summary td.pic { min-width: 120px !important;  }
+.coverage-summary tfoot td { }
+
+.coverage-summary .sorter {
+    height: 10px;
+    width: 7px;
+    display: inline-block;
+    margin-left: 0.5em;
+    background: url(sort-arrow-sprite.png) no-repeat scroll 0 0 transparent;
+}
+.coverage-summary .sorted .sorter {
+    background-position: 0 -20px;
+}
+.coverage-summary .sorted-desc .sorter {
+    background-position: 0 -10px;
+}
+.status-line {  height: 10px; }
+/* yellow */
+.cbranch-no { background: yellow !important; color: #111; }
+/* dark red */
+.red.solid, .status-line.low, .low .cover-fill { background:#C21F39 }
+.low .chart { border:1px solid #C21F39 }
+.highlighted,
+.highlighted .cstat-no, .highlighted .fstat-no, .highlighted .cbranch-no{
+  background: #C21F39 !important;
+}
+/* medium red */
+.cstat-no, .fstat-no, .cbranch-no, .cbranch-no { background:#F6C6CE }
+/* light red */
+.low, .cline-no { background:#FCE1E5 }
+/* light green */
+.high, .cline-yes { background:rgb(230,245,208) }
+/* medium green */
+.cstat-yes { background:rgb(161,215,106) }
+/* dark green */
+.status-line.high, .high .cover-fill { background:rgb(77,146,33) }
+.high .chart { border:1px solid rgb(77,146,33) }
+/* dark yellow (gold) */
+.status-line.medium, .medium .cover-fill { background: #f9cd0b; }
+.medium .chart { border:1px solid #f9cd0b; }
+/* light yellow */
+.medium { background: #fff4c2; }
+
+.cstat-skip { background: #ddd; color: #111; }
+.fstat-skip { background: #ddd; color: #111 !important; }
+.cbranch-skip { background: #ddd !important; color: #111; }
+
+span.cline-neutral { background: #eaeaea; }
+
+.coverage-summary td.empty {
+    opacity: .5;
+    padding-top: 4px;
+    padding-bottom: 4px;
+    line-height: 1;
+    color: #888;
+}
+
+.cover-fill, .cover-empty {
+  display:inline-block;
+  height: 12px;
+}
+.chart {
+  line-height: 0;
+}
+.cover-empty {
+    background: white;
+}
+.cover-full {
+    border-right: none !important;
+}
+pre.prettyprint {
+    border: none !important;
+    padding: 0 !important;
+    margin: 0 !important;
+}
+.com { color: #999 !important; }
+.ignore-none { color: #999; font-weight: normal; }
+
+.wrapper {
+  min-height: 100%;
+  height: auto !important;
+  height: 100%;
+  margin: 0 auto -48px;
+}
+.footer, .push {
+  height: 48px;
+}
diff --git a/frontend/coverage/block-navigation.js b/frontend/coverage/block-navigation.js
new file mode 100644
index 0000000..530d1ed
--- /dev/null
+++ b/frontend/coverage/block-navigation.js
@@ -0,0 +1,87 @@
+/* eslint-disable */
+var jumpToCode = (function init() {
+    // Classes of code we would like to highlight in the file view
+    var missingCoverageClasses = ['.cbranch-no', '.cstat-no', '.fstat-no'];
+
+    // Elements to highlight in the file listing view
+    var fileListingElements = ['td.pct.low'];
+
+    // We don't want to select elements that are direct descendants of another match
+    var notSelector = ':not(' + missingCoverageClasses.join('):not(') + ') > '; // becomes `:not(a):not(b) > `
+
+    // Selector that finds elements on the page to which we can jump
+    var selector =
+        fileListingElements.join(', ') +
+        ', ' +
+        notSelector +
+        missingCoverageClasses.join(', ' + notSelector); // becomes `:not(a):not(b) > a, :not(a):not(b) > b`
+
+    // The NodeList of matching elements
+    var missingCoverageElements = document.querySelectorAll(selector);
+
+    var currentIndex;
+
+    function toggleClass(index) {
+        missingCoverageElements
+            .item(currentIndex)
+            .classList.remove('highlighted');
+        missingCoverageElements.item(index).classList.add('highlighted');
+    }
+
+    function makeCurrent(index) {
+        toggleClass(index);
+        currentIndex = index;
+        missingCoverageElements.item(index).scrollIntoView({
+            behavior: 'smooth',
+            block: 'center',
+            inline: 'center'
+        });
+    }
+
+    function goToPrevious() {
+        var nextIndex = 0;
+        if (typeof currentIndex !== 'number' || currentIndex === 0) {
+            nextIndex = missingCoverageElements.length - 1;
+        } else if (missingCoverageElements.length > 1) {
+            nextIndex = currentIndex - 1;
+        }
+
+        makeCurrent(nextIndex);
+    }
+
+    function goToNext() {
+        var nextIndex = 0;
+
+        if (
+            typeof currentIndex === 'number' &&
+            currentIndex < missingCoverageElements.length - 1
+        ) {
+            nextIndex = currentIndex + 1;
+        }
+
+        makeCurrent(nextIndex);
+    }
+
+    return function jump(event) {
+        if (
+            document.getElementById('fileSearch') === document.activeElement &&
+            document.activeElement != null
+        ) {
+            // if we're currently focused on the search input, we don't want to navigate
+            return;
+        }
+
+        switch (event.which) {
+            case 78: // n
+            case 74: // j
+                goToNext();
+                break;
+            case 66: // b
+            case 75: // k
+            case 80: // p
+                goToPrevious();
+                break;
+        }
+    };
+})();
+window.addEventListener('keydown', jumpToCode);
diff --git a/frontend/coverage/clover.xml b/frontend/coverage/clover.xml
new file mode 100644
index 0000000..c45c1a8
--- /dev/null
+++ b/frontend/coverage/clover.xml
@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<coverage generated="1770961817903" clover="3.2.0">
+  <project timestamp="1770961817903" name="All files">
+    <metrics statements="32" coveredstatements="29" conditionals="12" coveredconditionals="9" methods="9" coveredmethods="8" elements="53" coveredelements="46" complexity="0" loc="32" ncloc="32" packages="2" files="4" classes="4"/>
+    <package name="src">
+      <metrics statements="15" coveredstatements="12" conditionals="6" coveredconditionals="4" methods="6" coveredmethods="5"/>
+      <file name="App.css" path="/Users/adam/workspace/vibecode/neko/frontend/src/App.css">
+        <metrics statements="0" coveredstatements="0" conditionals="0" coveredconditionals="0" methods="0" coveredmethods="0"/>
+      </file>
+      <file name="App.tsx" path="/Users/adam/workspace/vibecode/neko/frontend/src/App.tsx">
+        <metrics statements="15" coveredstatements="12" conditionals="6" coveredconditionals="4" methods="6" coveredmethods="5"/>
+        <line num="8" count="2" type="stmt"/>
+        <line num="9" count="2" type="stmt"/>
+        <line num="11" count="2" type="stmt"/>
+        <line num="12" count="1" type="stmt"/>
+        <line num="14" count="1" type="cond" truecount="1" falsecount="1"/>
+        <line num="15" count="1" type="stmt"/>
+        <line num="17" count="0" type="stmt"/>
+        <line num="20" count="0" type="stmt"/>
+        <line num="23" count="2" type="cond" truecount="2" falsecount="0"/>
+        <line num="24" count="1" type="stmt"/>
+        <line num="27" count="1" type="cond" truecount="1" falsecount="1"/>
+        <line num="28" count="0" type="stmt"/>
+        <line num="31" count="1" type="stmt"/>
+        <line num="36" count="1" type="stmt"/>
+        <line num="45" count="2" type="stmt"/>
+      </file>
+    </package>
+    <package name="src.components">
+      <metrics statements="17" coveredstatements="17" conditionals="6" coveredconditionals="5" methods="3" coveredmethods="3"/>
+      <file name="Login.css" path="/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.css">
+        <metrics statements="0" coveredstatements="0" conditionals="0" coveredconditionals="0" methods="0" coveredmethods="0"/>
+      </file>
+      <file name="Login.tsx" path="/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.tsx">
+        <metrics statements="17" coveredstatements="17" conditionals="6" coveredconditionals="5" methods="3" coveredmethods="3"/>
+        <line num="6" count="14" type="stmt"/>
+        <line num="7" count="14" type="stmt"/>
+        <line num="8" count="14" type="stmt"/>
+        <line num="10" count="14" type="stmt"/>
+        <line num="11" count="3" type="stmt"/>
+        <line num="12" count="3" type="stmt"/>
+        <line num="14" count="3" type="stmt"/>
+        <line num="16" count="3" type="stmt"/>
+        <line num="17" count="3" type="stmt"/>
+        <line num="19" count="3" type="stmt"/>
+        <line num="24" count="2" type="cond" truecount="2" falsecount="0"/>
+        <line num="25" count="1" type="stmt"/>
+        <line num="27" count="1" type="stmt"/>
+        <line num="28" count="1" type="cond" truecount="1" falsecount="1"/>
+        <line num="31" count="1" type="stmt"/>
+        <line num="35" count="14" type="stmt"/>
+        <line num="45" count="3" type="stmt"/>
+      </file>
+    </package>
+  </project>
+</coverage>
diff --git a/frontend/coverage/coverage-final.json b/frontend/coverage/coverage-final.json
new file mode 100644
index 0000000..ebc723c
--- /dev/null
+++ b/frontend/coverage/coverage-final.json
@@ -0,0 +1,5 @@
+{"/Users/adam/workspace/vibecode/neko/frontend/src/App.css": {"path":"/Users/adam/workspace/vibecode/neko/frontend/src/App.css","statementMap":{},"fnMap":{},"branchMap":{},"s":{},"f":{},"b":{},"meta":{"lastBranch":0,"lastFunction":0,"lastStatement":0,"seen":{}}}
+,"/Users/adam/workspace/vibecode/neko/frontend/src/App.tsx": {"path":"/Users/adam/workspace/vibecode/neko/frontend/src/App.tsx","statementMap":{"0":{"start":{"line":8,"column":22},"end":{"line":8,"column":null}},"1":{"start":{"line":9,"column":8},"end":{"line":9,"column":null}},"2":{"start":{"line":11,"column":2},"end":{"line":21,"column":null}},"3":{"start":{"line":12,"column":4},"end":{"line":20,"column":null}},"4":{"start":{"line":14,"column":8},"end":{"line":18,"column":null}},"5":{"start":{"line":15,"column":10},"end":{"line":15,"column":null}},"6":{"start":{"line":17,"column":10},"end":{"line":17,"column":null}},"7":{"start":{"line":20,"column":19},"end":{"line":20,"column":33}},"8":{"start":{"line":23,"column":2},"end":{"line":25,"column":null}},"9":{"start":{"line":24,"column":4},"end":{"line":24,"column":null}},"10":{"start":{"line":27,"column":2},"end":{"line":29,"column":null}},"11":{"start":{"line":28,"column":4},"end":{"line":28,"column":null}},"12":{"start":{"line":31,"column":2},"end":{"line":31,"column":null}},"13":{"start":{"line":36,"column":2},"end":{"line":40,"column":null}},"14":{"start":{"line":45,"column":2},"end":{"line":58,"column":null}}},"fnMap":{"0":{"name":"RequireAuth","decl":{"start":{"line":7,"column":9},"end":{"line":7,"column":21}},"loc":{"start":{"line":7,"column":69},"end":{"line":32,"column":null}},"line":7},"1":{"name":"(anonymous_1)","decl":{"start":{"line":11,"column":12},"end":{"line":11,"column":18}},"loc":{"start":{"line":11,"column":18},"end":{"line":21,"column":5}},"line":11},"2":{"name":"(anonymous_2)","decl":{"start":{"line":13,"column":12},"end":{"line":13,"column":13}},"loc":{"start":{"line":13,"column":21},"end":{"line":19,"column":7}},"line":13},"3":{"name":"(anonymous_3)","decl":{"start":{"line":20,"column":13},"end":{"line":20,"column":19}},"loc":{"start":{"line":20,"column":19},"end":{"line":20,"column":33}},"line":20},"4":{"name":"Dashboard","decl":{"start":{"line":34,"column":9},"end":{"line":34,"column":21}},"loc":{"start":{"line":34,"column":21},"end":{"line":42,"column":null}},"line":34},"5":{"name":"App","decl":{"start":{"line":44,"column":9},"end":{"line":44,"column":15}},"loc":{"start":{"line":44,"column":15},"end":{"line":60,"column":null}},"line":44}},"branchMap":{"0":{"loc":{"start":{"line":14,"column":8},"end":{"line":18,"column":null}},"type":"if","locations":[{"start":{"line":14,"column":8},"end":{"line":18,"column":null}},{"start":{"line":16,"column":15},"end":{"line":18,"column":null}}],"line":14},"1":{"loc":{"start":{"line":23,"column":2},"end":{"line":25,"column":null}},"type":"if","locations":[{"start":{"line":23,"column":2},"end":{"line":25,"column":null}},{"start":{},"end":{}}],"line":23},"2":{"loc":{"start":{"line":27,"column":2},"end":{"line":29,"column":null}},"type":"if","locations":[{"start":{"line":27,"column":2},"end":{"line":29,"column":null}},{"start":{},"end":{}}],"line":27}},"s":{"0":2,"1":2,"2":2,"3":1,"4":1,"5":1,"6":0,"7":0,"8":2,"9":1,"10":1,"11":0,"12":1,"13":1,"14":2},"f":{"0":2,"1":1,"2":1,"3":0,"4":1,"5":2},"b":{"0":[1,0],"1":[1,1],"2":[0,1]},"meta":{"lastBranch":3,"lastFunction":6,"lastStatement":15,"seen":{"f:7:9:7:21":0,"s:8:22:8:Infinity":0,"s:9:8:9:Infinity":1,"s:11:2:21:Infinity":2,"f:11:12:11:18":1,"s:12:4:20:Infinity":3,"f:13:12:13:13":2,"b:14:8:18:Infinity:16:15:18:Infinity":0,"s:14:8:18:Infinity":4,"s:15:10:15:Infinity":5,"s:17:10:17:Infinity":6,"f:20:13:20:19":3,"s:20:19:20:33":7,"b:23:2:25:Infinity:undefined:undefined:undefined:undefined":1,"s:23:2:25:Infinity":8,"s:24:4:24:Infinity":9,"b:27:2:29:Infinity:undefined:undefined:undefined:undefined":2,"s:27:2:29:Infinity":10,"s:28:4:28:Infinity":11,"s:31:2:31:Infinity":12,"f:34:9:34:21":4,"s:36:2:40:Infinity":13,"f:44:9:44:15":5,"s:45:2:58:Infinity":14}}}
+,"/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.css": {"path":"/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.css","statementMap":{},"fnMap":{},"branchMap":{},"s":{},"f":{},"b":{},"meta":{"lastBranch":0,"lastFunction":0,"lastStatement":0,"seen":{}}}
+,"/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.tsx": {"path":"/Users/adam/workspace/vibecode/neko/frontend/src/components/Login.tsx","statementMap":{"0":{"start":{"line":6,"column":32},"end":{"line":6,"column":null}},"1":{"start":{"line":7,"column":26},"end":{"line":7,"column":null}},"2":{"start":{"line":8,"column":10},"end":{"line":8,"column":null}},"3":{"start":{"line":10,"column":25},"end":{"line":33,"column":null}},"4":{"start":{"line":11,"column":8},"end":{"line":11,"column":null}},"5":{"start":{"line":12,"column":8},"end":{"line":12,"column":null}},"6":{"start":{"line":14,"column":8},"end":{"line":32,"column":null}},"7":{"start":{"line":16,"column":27},"end":{"line":16,"column":null}},"8":{"start":{"line":17,"column":12},"end":{"line":17,"column":null}},"9":{"start":{"line":19,"column":24},"end":{"line":22,"column":null}},"10":{"start":{"line":24,"column":12},"end":{"line":29,"column":null}},"11":{"start":{"line":25,"column":16},"end":{"line":25,"column":null}},"12":{"start":{"line":27,"column":29},"end":{"line":27,"column":null}},"13":{"start":{"line":28,"column":16},"end":{"line":28,"column":null}},"14":{"start":{"line":31,"column":12},"end":{"line":31,"column":null}},"15":{"start":{"line":35,"column":4},"end":{"line":52,"column":null}},"16":{"start":{"line":45,"column":41},"end":{"line":45,"column":null}}},"fnMap":{"0":{"name":"Login","decl":{"start":{"line":5,"column":24},"end":{"line":5,"column":32}},"loc":{"start":{"line":5,"column":32},"end":{"line":54,"column":null}},"line":5},"1":{"name":"(anonymous_1)","decl":{"start":{"line":10,"column":25},"end":{"line":10,"column":32}},"loc":{"start":{"line":10,"column":49},"end":{"line":33,"column":null}},"line":10},"2":{"name":"(anonymous_2)","decl":{"start":{"line":45,"column":34},"end":{"line":45,"column":35}},"loc":{"start":{"line":45,"column":41},"end":{"line":45,"column":null}},"line":45}},"branchMap":{"0":{"loc":{"start":{"line":24,"column":12},"end":{"line":29,"column":null}},"type":"if","locations":[{"start":{"line":24,"column":12},"end":{"line":29,"column":null}},{"start":{"line":26,"column":19},"end":{"line":29,"column":null}}],"line":24},"1":{"loc":{"start":{"line":28,"column":25},"end":{"line":28,"column":55}},"type":"binary-expr","locations":[{"start":{"line":28,"column":25},"end":{"line":28,"column":41}},{"start":{"line":28,"column":41},"end":{"line":28,"column":55}}],"line":28},"2":{"loc":{"start":{"line":49,"column":17},"end":{"line":49,"column":null}},"type":"binary-expr","locations":[{"start":{"line":49,"column":17},"end":{"line":49,"column":26}},{"start":{"line":49,"column":26},"end":{"line":49,"column":null}}],"line":49}},"s":{"0":14,"1":14,"2":14,"3":14,"4":3,"5":3,"6":3,"7":3,"8":3,"9":3,"10":2,"11":1,"12":1,"13":1,"14":1,"15":14,"16":3},"f":{"0":14,"1":3,"2":3},"b":{"0":[1,1],"1":[1,0],"2":[14,2]},"meta":{"lastBranch":3,"lastFunction":3,"lastStatement":17,"seen":{"f:5:24:5:32":0,"s:6:32:6:Infinity":0,"s:7:26:7:Infinity":1,"s:8:10:8:Infinity":2,"s:10:25:33:Infinity":3,"f:10:25:10:32":1,"s:11:8:11:Infinity":4,"s:12:8:12:Infinity":5,"s:14:8:32:Infinity":6,"s:16:27:16:Infinity":7,"s:17:12:17:Infinity":8,"s:19:24:22:Infinity":9,"b:24:12:29:Infinity:26:19:29:Infinity":0,"s:24:12:29:Infinity":10,"s:25:16:25:Infinity":11,"s:27:29:27:Infinity":12,"s:28:16:28:Infinity":13,"b:28:25:28:41:28:41:28:55":1,"s:31:12:31:Infinity":14,"s:35:4:52:Infinity":15,"f:45:34:45:35":2,"s:45:41:45:Infinity":16,"b:49:17:49:26:49:26:49:Infinity":2}}}
+}
diff --git a/frontend/coverage/favicon.png b/frontend/coverage/favicon.png
new file mode 100644
index 0000000..c1525b8
--- /dev/null
+++ b/frontend/coverage/favicon.png
diff --git a/frontend/coverage/index.html b/frontend/coverage/index.html
new file mode 100644
index 0000000..8fcf963
--- /dev/null
+++ b/frontend/coverage/index.html
@@ -0,0 +1,131 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for All files</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="prettify.css" />
+    <link rel="stylesheet" href="base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1>All files</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">90.62% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>29/32</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">75% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>9/12</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">88.88% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>8/9</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">90.62% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>29/32</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line high'></div>
+    <div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file high" data-value="src"><a href="src/index.html">src</a></td>
+	<td data-value="80" class="pic high">
+	<div class="chart"><div class="cover-fill" style="width: 80%"></div><div class="cover-empty" style="width: 20%"></div></div>
+	</td>
+	<td data-value="80" class="pct high">80%</td>
+	<td data-value="15" class="abs high">12/15</td>
+	<td data-value="66.66" class="pct medium">66.66%</td>
+	<td data-value="6" class="abs medium">4/6</td>
+	<td data-value="83.33" class="pct high">83.33%</td>
+	<td data-value="6" class="abs high">5/6</td>
+	<td data-value="80" class="pct high">80%</td>
+	<td data-value="15" class="abs high">12/15</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="src/components"><a href="src/components/index.html">src/components</a></td>
+	<td data-value="100" class="pic high">
+	<div class="chart"><div class="cover-fill cover-full" style="width: 100%"></div><div class="cover-empty" style="width: 0%"></div></div>
+	</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="17" class="abs high">17/17</td>
+	<td data-value="83.33" class="pct high">83.33%</td>
+	<td data-value="6" class="abs high">5/6</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="3" class="abs high">3/3</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="17" class="abs high">17/17</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="sorter.js"></script>
+        <script src="block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/prettify.css b/frontend/coverage/prettify.css
new file mode 100644
index 0000000..b317a7c
--- /dev/null
+++ b/frontend/coverage/prettify.css
@@ -0,0 +1 @@
+.pln{color:#000}@media screen{.str{color:#080}.kwd{color:#008}.com{color:#800}.typ{color:#606}.lit{color:#066}.pun,.opn,.clo{color:#660}.tag{color:#008}.atn{color:#606}.atv{color:#080}.dec,.var{color:#606}.fun{color:red}}@media print,projection{.str{color:#060}.kwd{color:#006;font-weight:bold}.com{color:#600;font-style:italic}.typ{color:#404;font-weight:bold}.lit{color:#044}.pun,.opn,.clo{color:#440}.tag{color:#006;font-weight:bold}.atn{color:#404}.atv{color:#060}}pre.prettyprint{padding:2px;border:1px solid #888}ol.linenums{margin-top:0;margin-bottom:0}li.L0,li.L1,li.L2,li.L3,li.L5,li.L6,li.L7,li.L8{list-style-type:none}li.L1,li.L3,li.L5,li.L7,li.L9{background:#eee}
diff --git a/frontend/coverage/prettify.js b/frontend/coverage/prettify.js
new file mode 100644
index 0000000..b322523
--- /dev/null
+++ b/frontend/coverage/prettify.js
@@ -0,0 +1,2 @@
+/* eslint-disable */
+window.PR_SHOULD_USE_CONTINUATION=true;(function(){var h=["break,continue,do,else,for,if,return,while"];var u=[h,"auto,case,char,const,default,double,enum,extern,float,goto,int,long,register,short,signed,sizeof,static,struct,switch,typedef,union,unsigned,void,volatile"];var p=[u,"catch,class,delete,false,import,new,operator,private,protected,public,this,throw,true,try,typeof"];var l=[p,"alignof,align_union,asm,axiom,bool,concept,concept_map,const_cast,constexpr,decltype,dynamic_cast,explicit,export,friend,inline,late_check,mutable,namespace,nullptr,reinterpret_cast,static_assert,static_cast,template,typeid,typename,using,virtual,where"];var x=[p,"abstract,boolean,byte,extends,final,finally,implements,import,instanceof,null,native,package,strictfp,super,synchronized,throws,transient"];var R=[x,"as,base,by,checked,decimal,delegate,descending,dynamic,event,fixed,foreach,from,group,implicit,in,interface,internal,into,is,lock,object,out,override,orderby,params,partial,readonly,ref,sbyte,sealed,stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort,var"];var r="all,and,by,catch,class,else,extends,false,finally,for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then,true,try,unless,until,when,while,yes";var w=[p,"debugger,eval,export,function,get,null,set,undefined,var,with,Infinity,NaN"];var s="caller,delete,die,do,dump,elsif,eval,exit,foreach,for,goto,if,import,last,local,my,next,no,our,print,package,redo,require,sub,undef,unless,until,use,wantarray,while,BEGIN,END";var I=[h,"and,as,assert,class,def,del,elif,except,exec,finally,from,global,import,in,is,lambda,nonlocal,not,or,pass,print,raise,try,with,yield,False,True,None"];var f=[h,"alias,and,begin,case,class,def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo,rescue,retry,self,super,then,true,undef,unless,until,when,yield,BEGIN,END"];var H=[h,"case,done,elif,esac,eval,fi,function,in,local,set,then,until"];var A=[l,R,w,s+I,f,H];var e=/^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float)\d*)/;var C="str";var z="kwd";var j="com";var O="typ";var G="lit";var L="pun";var F="pln";var m="tag";var E="dec";var J="src";var P="atn";var n="atv";var N="nocode";var M="(?:^^\\.?|[+-]|\\!|\\!=|\\!==|\\#|\\%|\\%=|&|&&|&&=|&=|\\(|\\*|\\*=|\\+=|\\,|\\-=|\\->|\\/|\\/=|:|::|\\;|<|<<|<<=|<=|=|==|===|>|>=|>>|>>=|>>>|>>>=|\\?|\\@|\\[|\\^|\\^=|\\^\\^|\\^\\^=|\\{|\\||\\|=|\\|\\||\\|\\|=|\\~|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*";function k(Z){var ad=0;var S=false;var ac=false;for(var V=0,U=Z.length;V<U;++V){var ae=Z[V];if(ae.ignoreCase){ac=true}else{if(/[a-z]/i.test(ae.source.replace(/\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi,""))){S=true;ac=false;break}}}var Y={b:8,t:9,n:10,v:11,f:12,r:13};function ab(ah){var ag=ah.charCodeAt(0);if(ag!==92){return ag}var af=ah.charAt(1);ag=Y[af];if(ag){return ag}else{if("0"<=af&&af<="7"){return parseInt(ah.substring(1),8)}else{if(af==="u"||af==="x"){return parseInt(ah.substring(2),16)}else{return ah.charCodeAt(1)}}}}function T(af){if(af<32){return(af<16?"\\x0":"\\x")+af.toString(16)}var ag=String.fromCharCode(af);if(ag==="\\"||ag==="-"||ag==="["||ag==="]"){ag="\\"+ag}return ag}function X(am){var aq=am.substring(1,am.length-1).match(new RegExp("\\\\u[0-9A-Fa-f]{4}|\\\\x[0-9A-Fa-f]{2}|\\\\[0-3][0-7]{0,2}|\\\\[0-7]{1,2}|\\\\[\\s\\S]|-|[^-\\\\]","g"));var ak=[];var af=[];var ao=aq[0]==="^";for(var ar=ao?1:0,aj=aq.length;ar<aj;++ar){var ah=aq[ar];if(/\\[bdsw]/i.test(ah)){ak.push(ah)}else{var ag=ab(ah);var al;if(ar+2<aj&&"-"===aq[ar+1]){al=ab(aq[ar+2]);ar+=2}else{al=ag}af.push([ag,al]);if(!(al<65||ag>122)){if(!(al<65||ag>90)){af.push([Math.max(65,ag)|32,Math.min(al,90)|32])}if(!(al<97||ag>122)){af.push([Math.max(97,ag)&~32,Math.min(al,122)&~32])}}}}af.sort(function(av,au){return(av[0]-au[0])||(au[1]-av[1])});var ai=[];var ap=[NaN,NaN];for(var ar=0;ar<af.length;++ar){var at=af[ar];if(at[0]<=ap[1]+1){ap[1]=Math.max(ap[1],at[1])}else{ai.push(ap=at)}}var an=["["];if(ao){an.push("^")}an.push.apply(an,ak);for(var ar=0;ar<ai.length;++ar){var at=ai[ar];an.push(T(at[0]));if(at[1]>at[0]){if(at[1]+1>at[0]){an.push("-")}an.push(T(at[1]))}}an.push("]");return an.join("")}function W(al){var aj=al.source.match(new RegExp("(?:\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]|\\\\u[A-Fa-f0-9]{4}|\\\\x[A-Fa-f0-9]{2}|\\\\[0-9]+|\\\\[^ux0-9]|\\(\\?[:!=]|[\\(\\)\\^]|[^\\x5B\\x5C\\(\\)\\^]+)","g"));var ah=aj.length;var an=[];for(var ak=0,am=0;ak<ah;++ak){var ag=aj[ak];if(ag==="("){++am}else{if("\\"===ag.charAt(0)){var af=+ag.substring(1);if(af&&af<=am){an[af]=-1}}}}for(var ak=1;ak<an.length;++ak){if(-1===an[ak]){an[ak]=++ad}}for(var ak=0,am=0;ak<ah;++ak){var ag=aj[ak];if(ag==="("){++am;if(an[am]===undefined){aj[ak]="(?:"}}else{if("\\"===ag.charAt(0)){var af=+ag.substring(1);if(af&&af<=am){aj[ak]="\\"+an[am]}}}}for(var ak=0,am=0;ak<ah;++ak){if("^"===aj[ak]&&"^"!==aj[ak+1]){aj[ak]=""}}if(al.ignoreCase&&S){for(var ak=0;ak<ah;++ak){var ag=aj[ak];var ai=ag.charAt(0);if(ag.length>=2&&ai==="["){aj[ak]=X(ag)}else{if(ai!=="\\"){aj[ak]=ag.replace(/[a-zA-Z]/g,function(ao){var ap=ao.charCodeAt(0);return"["+String.fromCharCode(ap&~32,ap|32)+"]"})}}}}return aj.join("")}var aa=[];for(var V=0,U=Z.length;V<U;++V){var ae=Z[V];if(ae.global||ae.multiline){throw new Error(""+ae)}aa.push("(?:"+W(ae)+")")}return new RegExp(aa.join("|"),ac?"gi":"g")}function a(V){var U=/(?:^|\s)nocode(?:\s|$)/;var X=[];var T=0;var Z=[];var W=0;var S;if(V.currentStyle){S=V.currentStyle.whiteSpace}else{if(window.getComputedStyle){S=document.defaultView.getComputedStyle(V,null).getPropertyValue("white-space")}}var Y=S&&"pre"===S.substring(0,3);function aa(ab){switch(ab.nodeType){case 1:if(U.test(ab.className)){return}for(var ae=ab.firstChild;ae;ae=ae.nextSibling){aa(ae)}var ad=ab.nodeName;if("BR"===ad||"LI"===ad){X[W]="\n";Z[W<<1]=T++;Z[(W++<<1)|1]=ab}break;case 3:case 4:var ac=ab.nodeValue;if(ac.length){if(!Y){ac=ac.replace(/[ \t\r\n]+/g," ")}else{ac=ac.replace(/\r\n?/g,"\n")}X[W]=ac;Z[W<<1]=T;T+=ac.length;Z[(W++<<1)|1]=ab}break}}aa(V);return{sourceCode:X.join("").replace(/\n$/,""),spans:Z}}function B(S,U,W,T){if(!U){return}var V={sourceCode:U,basePos:S};W(V);T.push.apply(T,V.decorations)}var v=/\S/;function o(S){var V=undefined;for(var U=S.firstChild;U;U=U.nextSibling){var T=U.nodeType;V=(T===1)?(V?S:U):(T===3)?(v.test(U.nodeValue)?S:V):V}return V===S?undefined:V}function g(U,T){var S={};var V;(function(){var ad=U.concat(T);var ah=[];var ag={};for(var ab=0,Z=ad.length;ab<Z;++ab){var Y=ad[ab];var ac=Y[3];if(ac){for(var ae=ac.length;--ae>=0;){S[ac.charAt(ae)]=Y}}var af=Y[1];var aa=""+af;if(!ag.hasOwnProperty(aa)){ah.push(af);ag[aa]=null}}ah.push(/[\0-\uffff]/);V=k(ah)})();var X=T.length;var W=function(ah){var Z=ah.sourceCode,Y=ah.basePos;var ad=[Y,F];var af=0;var an=Z.match(V)||[];var aj={};for(var ae=0,aq=an.length;ae<aq;++ae){var ag=an[ae];var ap=aj[ag];var ai=void 0;var am;if(typeof ap==="string"){am=false}else{var aa=S[ag.charAt(0)];if(aa){ai=ag.match(aa[1]);ap=aa[0]}else{for(var ao=0;ao<X;++ao){aa=T[ao];ai=ag.match(aa[1]);if(ai){ap=aa[0];break}}if(!ai){ap=F}}am=ap.length>=5&&"lang-"===ap.substring(0,5);if(am&&!(ai&&typeof ai[1]==="string")){am=false;ap=J}if(!am){aj[ag]=ap}}var ab=af;af+=ag.length;if(!am){ad.push(Y+ab,ap)}else{var al=ai[1];var ak=ag.indexOf(al);var ac=ak+al.length;if(ai[2]){ac=ag.length-ai[2].length;ak=ac-al.length}var ar=ap.substring(5);B(Y+ab,ag.substring(0,ak),W,ad);B(Y+ab+ak,al,q(ar,al),ad);B(Y+ab+ac,ag.substring(ac),W,ad)}}ah.decorations=ad};return W}function i(T){var W=[],S=[];if(T.tripleQuotedStrings){W.push([C,/^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/,null,"'\""])}else{if(T.multiLineStrings){W.push([C,/^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/,null,"'\"`"])}else{W.push([C,/^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/,null,"\"'"])}}if(T.verbatimStrings){S.push([C,/^@\"(?:[^\"]|\"\")*(?:\"|$)/,null])}var Y=T.hashComments;if(Y){if(T.cStyleComments){if(Y>1){W.push([j,/^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/,null,"#"])}else{W.push([j,/^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/,null,"#"])}S.push([C,/^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h|[a-z]\w*)>/,null])}else{W.push([j,/^#[^\r\n]*/,null,"#"])}}if(T.cStyleComments){S.push([j,/^\/\/[^\r\n]*/,null]);S.push([j,/^\/\*[\s\S]*?(?:\*\/|$)/,null])}if(T.regexLiterals){var X=("/(?=[^/*])(?:[^/\\x5B\\x5C]|\\x5C[\\s\\S]|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+/");S.push(["lang-regex",new RegExp("^"+M+"("+X+")")])}var V=T.types;if(V){S.push([O,V])}var U=(""+T.keywords).replace(/^ | $/g,"");if(U.length){S.push([z,new RegExp("^(?:"+U.replace(/[\s,]+/g,"|")+")\\b"),null])}W.push([F,/^\s+/,null," \r\n\t\xA0"]);S.push([G,/^@[a-z_$][a-z_$@0-9]*/i,null],[O,/^(?:[@_]?[A-Z]+[a-z][A-Za-z_$@0-9]*|\w+_t\b)/,null],[F,/^[a-z_$][a-z_$@0-9]*/i,null],[G,new RegExp("^(?:0x[a-f0-9]+|(?:\\d(?:_\\d+)*\\d*(?:\\.\\d*)?|\\.\\d\\+)(?:e[+\\-]?\\d+)?)[a-z]*","i"),null,"0123456789"],[F,/^\\[\s\S]?/,null],[L,/^.[^\s\w\.$@\'\"\`\/\#\\]*/,null]);return g(W,S)}var K=i({keywords:A,hashComments:true,cStyleComments:true,multiLineStrings:true,regexLiterals:true});function Q(V,ag){var U=/(?:^|\s)nocode(?:\s|$)/;var ab=/\r\n?|\n/;var ac=V.ownerDocument;var S;if(V.currentStyle){S=V.currentStyle.whiteSpace}else{if(window.getComputedStyle){S=ac.defaultView.getComputedStyle(V,null).getPropertyValue("white-space")}}var Z=S&&"pre"===S.substring(0,3);var af=ac.createElement("LI");while(V.firstChild){af.appendChild(V.firstChild)}var W=[af];function ae(al){switch(al.nodeType){case 1:if(U.test(al.className)){break}if("BR"===al.nodeName){ad(al);if(al.parentNode){al.parentNode.removeChild(al)}}else{for(var an=al.firstChild;an;an=an.nextSibling){ae(an)}}break;case 3:case 4:if(Z){var am=al.nodeValue;var aj=am.match(ab);if(aj){var ai=am.substring(0,aj.index);al.nodeValue=ai;var ah=am.substring(aj.index+aj[0].length);if(ah){var ak=al.parentNode;ak.insertBefore(ac.createTextNode(ah),al.nextSibling)}ad(al);if(!ai){al.parentNode.removeChild(al)}}}break}}function ad(ak){while(!ak.nextSibling){ak=ak.parentNode;if(!ak){return}}function ai(al,ar){var aq=ar?al.cloneNode(false):al;var ao=al.parentNode;if(ao){var ap=ai(ao,1);var an=al.nextSibling;ap.appendChild(aq);for(var am=an;am;am=an){an=am.nextSibling;ap.appendChild(am)}}return aq}var ah=ai(ak.nextSibling,0);for(var aj;(aj=ah.parentNode)&&aj.nodeType===1;){ah=aj}W.push(ah)}for(var Y=0;Y<W.length;++Y){ae(W[Y])}if(ag===(ag|0)){W[0].setAttribute("value",ag)}var aa=ac.createElement("OL");aa.className="linenums";var X=Math.max(0,((ag-1))|0)||0;for(var Y=0,T=W.length;Y<T;++Y){af=W[Y];af.className="L"+((Y+X)%10);if(!af.firstChild){af.appendChild(ac.createTextNode("\xA0"))}aa.appendChild(af)}V.appendChild(aa)}function D(ac){var aj=/\bMSIE\b/.test(navigator.userAgent);var am=/\n/g;var al=ac.sourceCode;var an=al.length;var V=0;var aa=ac.spans;var T=aa.length;var ah=0;var X=ac.decorations;var Y=X.length;var Z=0;X[Y]=an;var ar,aq;for(aq=ar=0;aq<Y;){if(X[aq]!==X[aq+2]){X[ar++]=X[aq++];X[ar++]=X[aq++]}else{aq+=2}}Y=ar;for(aq=ar=0;aq<Y;){var at=X[aq];var ab=X[aq+1];var W=aq+2;while(W+2<=Y&&X[W+1]===ab){W+=2}X[ar++]=at;X[ar++]=ab;aq=W}Y=X.length=ar;var ae=null;while(ah<T){var af=aa[ah];var S=aa[ah+2]||an;var ag=X[Z];var ap=X[Z+2]||an;var W=Math.min(S,ap);var ak=aa[ah+1];var U;if(ak.nodeType!==1&&(U=al.substring(V,W))){if(aj){U=U.replace(am,"\r")}ak.nodeValue=U;var ai=ak.ownerDocument;var ao=ai.createElement("SPAN");ao.className=X[Z+1];var ad=ak.parentNode;ad.replaceChild(ao,ak);ao.appendChild(ak);if(V<S){aa[ah+1]=ak=ai.createTextNode(al.substring(W,S));ad.insertBefore(ak,ao.nextSibling)}}V=W;if(V>=S){ah+=2}if(V>=ap){Z+=2}}}var t={};function c(U,V){for(var S=V.length;--S>=0;){var T=V[S];if(!t.hasOwnProperty(T)){t[T]=U}else{if(window.console){console.warn("cannot override language handler %s",T)}}}}function q(T,S){if(!(T&&t.hasOwnProperty(T))){T=/^\s*</.test(S)?"default-markup":"default-code"}return t[T]}c(K,["default-code"]);c(g([],[[F,/^[^<?]+/],[E,/^<!\w[^>]*(?:>|$)/],[j,/^<\!--[\s\S]*?(?:-\->|$)/],["lang-",/^<\?([\s\S]+?)(?:\?>|$)/],["lang-",/^<%([\s\S]+?)(?:%>|$)/],[L,/^(?:<[%?]|[%?]>)/],["lang-",/^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],["lang-js",/^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],["lang-css",/^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],["lang-in.tag",/^(<\/?[a-z][^<>]*>)/i]]),["default-markup","htm","html","mxml","xhtml","xml","xsl"]);c(g([[F,/^[\s]+/,null," \t\r\n"],[n,/^(?:\"[^\"]*\"?|\'[^\']*\'?)/,null,"\"'"]],[[m,/^^<\/?[a-z](?:[\w.:-]*\w)?|\/?>$/i],[P,/^(?!style[\s=]|on)[a-z](?:[\w:-]*\w)?/i],["lang-uq.val",/^=\s*([^>\'\"\s]*(?:[^>\'\"\s\/]|\/(?=\s)))/],[L,/^[=<>\/]+/],["lang-js",/^on\w+\s*=\s*\"([^\"]+)\"/i],["lang-js",/^on\w+\s*=\s*\'([^\']+)\'/i],["lang-js",/^on\w+\s*=\s*([^\"\'>\s]+)/i],["lang-css",/^style\s*=\s*\"([^\"]+)\"/i],["lang-css",/^style\s*=\s*\'([^\']+)\'/i],["lang-css",/^style\s*=\s*([^\"\'>\s]+)/i]]),["in.tag"]);c(g([],[[n,/^[\s\S]+/]]),["uq.val"]);c(i({keywords:l,hashComments:true,cStyleComments:true,types:e}),["c","cc","cpp","cxx","cyc","m"]);c(i({keywords:"null,true,false"}),["json"]);c(i({keywords:R,hashComments:true,cStyleComments:true,verbatimStrings:true,types:e}),["cs"]);c(i({keywords:x,cStyleComments:true}),["java"]);c(i({keywords:H,hashComments:true,multiLineStrings:true}),["bsh","csh","sh"]);c(i({keywords:I,hashComments:true,multiLineStrings:true,tripleQuotedStrings:true}),["cv","py"]);c(i({keywords:s,hashComments:true,multiLineStrings:true,regexLiterals:true}),["perl","pl","pm"]);c(i({keywords:f,hashComments:true,multiLineStrings:true,regexLiterals:true}),["rb"]);c(i({keywords:w,cStyleComments:true,regexLiterals:true}),["js"]);c(i({keywords:r,hashComments:3,cStyleComments:true,multilineStrings:true,tripleQuotedStrings:true,regexLiterals:true}),["coffee"]);c(g([],[[C,/^[\s\S]+/]]),["regex"]);function d(V){var U=V.langExtension;try{var S=a(V.sourceNode);var T=S.sourceCode;V.sourceCode=T;V.spans=S.spans;V.basePos=0;q(U,T)(V);D(V)}catch(W){if("console" in window){console.log(W&&W.stack?W.stack:W)}}}function y(W,V,U){var S=document.createElement("PRE");S.innerHTML=W;if(U){Q(S,U)}var T={langExtension:V,numberLines:U,sourceNode:S};d(T);return S.innerHTML}function b(ad){function Y(af){return document.getElementsByTagName(af)}var ac=[Y("pre"),Y("code"),Y("xmp")];var T=[];for(var aa=0;aa<ac.length;++aa){for(var Z=0,V=ac[aa].length;Z<V;++Z){T.push(ac[aa][Z])}}ac=null;var W=Date;if(!W.now){W={now:function(){return +(new Date)}}}var X=0;var S;var ab=/\blang(?:uage)?-([\w.]+)(?!\S)/;var ae=/\bprettyprint\b/;function U(){var ag=(window.PR_SHOULD_USE_CONTINUATION?W.now()+250:Infinity);for(;X<T.length&&W.now()<ag;X++){var aj=T[X];var ai=aj.className;if(ai.indexOf("prettyprint")>=0){var ah=ai.match(ab);var am;if(!ah&&(am=o(aj))&&"CODE"===am.tagName){ah=am.className.match(ab)}if(ah){ah=ah[1]}var al=false;for(var ak=aj.parentNode;ak;ak=ak.parentNode){if((ak.tagName==="pre"||ak.tagName==="code"||ak.tagName==="xmp")&&ak.className&&ak.className.indexOf("prettyprint")>=0){al=true;break}}if(!al){var af=aj.className.match(/\blinenums\b(?::(\d+))?/);af=af?af[1]&&af[1].length?+af[1]:true:false;if(af){Q(aj,af)}S={langExtension:ah,sourceNode:aj,numberLines:af};d(S)}}}if(X<T.length){setTimeout(U,250)}else{if(ad){ad()}}}U()}window.prettyPrintOne=y;window.prettyPrint=b;window.PR={createSimpleLexer:g,registerLangHandler:c,sourceDecorator:i,PR_ATTRIB_NAME:P,PR_ATTRIB_VALUE:n,PR_COMMENT:j,PR_DECLARATION:E,PR_KEYWORD:z,PR_LITERAL:G,PR_NOCODE:N,PR_PLAIN:F,PR_PUNCTUATION:L,PR_SOURCE:J,PR_STRING:C,PR_TAG:m,PR_TYPE:O}})();PR.registerLangHandler(PR.createSimpleLexer([],[[PR.PR_DECLARATION,/^<!\w[^>]*(?:>|$)/],[PR.PR_COMMENT,/^<\!--[\s\S]*?(?:-\->|$)/],[PR.PR_PUNCTUATION,/^(?:<[%?]|[%?]>)/],["lang-",/^<\?([\s\S]+?)(?:\?>|$)/],["lang-",/^<%([\s\S]+?)(?:%>|$)/],["lang-",/^<xmp\b[^>]*>([\s\S]+?)<\/xmp\b[^>]*>/i],["lang-handlebars",/^<script\b[^>]*type\s*=\s*['"]?text\/x-handlebars-template['"]?\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],["lang-js",/^<script\b[^>]*>([\s\S]*?)(<\/script\b[^>]*>)/i],["lang-css",/^<style\b[^>]*>([\s\S]*?)(<\/style\b[^>]*>)/i],["lang-in.tag",/^(<\/?[a-z][^<>]*>)/i],[PR.PR_DECLARATION,/^{{[#^>/]?\s*[\w.][^}]*}}/],[PR.PR_DECLARATION,/^{{&?\s*[\w.][^}]*}}/],[PR.PR_DECLARATION,/^{{{>?\s*[\w.][^}]*}}}/],[PR.PR_COMMENT,/^{{![^}]*}}/]]),["handlebars","hbs"]);PR.registerLangHandler(PR.createSimpleLexer([[PR.PR_PLAIN,/^[ \t\r\n\f]+/,null," \t\r\n\f"]],[[PR.PR_STRING,/^\"(?:[^\n\r\f\\\"]|\\(?:\r\n?|\n|\f)|\\[\s\S])*\"/,null],[PR.PR_STRING,/^\'(?:[^\n\r\f\\\']|\\(?:\r\n?|\n|\f)|\\[\s\S])*\'/,null],["lang-css-str",/^url\(([^\)\"\']*)\)/i],[PR.PR_KEYWORD,/^(?:url|rgb|\!important|@import|@page|@media|@charset|inherit)(?=[^\-\w]|$)/i,null],["lang-css-kw",/^(-?(?:[_a-z]|(?:\\[0-9a-f]+ ?))(?:[_a-z0-9\-]|\\(?:\\[0-9a-f]+ ?))*)\s*:/i],[PR.PR_COMMENT,/^\/\*[^*]*\*+(?:[^\/*][^*]*\*+)*\//],[PR.PR_COMMENT,/^(?:<!--|-->)/],[PR.PR_LITERAL,/^(?:\d+|\d*\.\d+)(?:%|[a-z]+)?/i],[PR.PR_LITERAL,/^#(?:[0-9a-f]{3}){1,2}/i],[PR.PR_PLAIN,/^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d\-]|\\(?:\\[\da-f]+ ?))*/i],[PR.PR_PUNCTUATION,/^[^\s\w\'\"]+/]]),["css"]);PR.registerLangHandler(PR.createSimpleLexer([],[[PR.PR_KEYWORD,/^-?(?:[_a-z]|(?:\\[\da-f]+ ?))(?:[_a-z\d\-]|\\(?:\\[\da-f]+ ?))*/i]]),["css-kw"]);PR.registerLangHandler(PR.createSimpleLexer([],[[PR.PR_STRING,/^[^\)\"\']+/]]),["css-str"]);
diff --git a/frontend/coverage/sort-arrow-sprite.png b/frontend/coverage/sort-arrow-sprite.png
new file mode 100644
index 0000000..6ed6831
--- /dev/null
+++ b/frontend/coverage/sort-arrow-sprite.png
diff --git a/frontend/coverage/sorter.js b/frontend/coverage/sorter.js
new file mode 100644
index 0000000..4ed70ae
--- /dev/null
+++ b/frontend/coverage/sorter.js
@@ -0,0 +1,210 @@
+/* eslint-disable */
+var addSorting = (function() {
+    'use strict';
+    var cols,
+        currentSort = {
+            index: 0,
+            desc: false
+        };
+
+    // returns the summary table element
+    function getTable() {
+        return document.querySelector('.coverage-summary');
+    }
+    // returns the thead element of the summary table
+    function getTableHeader() {
+        return getTable().querySelector('thead tr');
+    }
+    // returns the tbody element of the summary table
+    function getTableBody() {
+        return getTable().querySelector('tbody');
+    }
+    // returns the th element for nth column
+    function getNthColumn(n) {
+        return getTableHeader().querySelectorAll('th')[n];
+    }
+
+    function onFilterInput() {
+        const searchValue = document.getElementById('fileSearch').value;
+        const rows = document.getElementsByTagName('tbody')[0].children;
+
+        // Try to create a RegExp from the searchValue. If it fails (invalid regex),
+        // it will be treated as a plain text search
+        let searchRegex;
+        try {
+            searchRegex = new RegExp(searchValue, 'i'); // 'i' for case-insensitive
+        } catch (error) {
+            searchRegex = null;
+        }
+
+        for (let i = 0; i < rows.length; i++) {
+            const row = rows[i];
+            let isMatch = false;
+
+            if (searchRegex) {
+                // If a valid regex was created, use it for matching
+                isMatch = searchRegex.test(row.textContent);
+            } else {
+                // Otherwise, fall back to the original plain text search
+                isMatch = row.textContent
+                    .toLowerCase()
+                    .includes(searchValue.toLowerCase());
+            }
+
+            row.style.display = isMatch ? '' : 'none';
+        }
+    }
+
+    // loads the search box
+    function addSearchBox() {
+        var template = document.getElementById('filterTemplate');
+        var templateClone = template.content.cloneNode(true);
+        templateClone.getElementById('fileSearch').oninput = onFilterInput;
+        template.parentElement.appendChild(templateClone);
+    }
+
+    // loads all columns
+    function loadColumns() {
+        var colNodes = getTableHeader().querySelectorAll('th'),
+            colNode,
+            cols = [],
+            col,
+            i;
+
+        for (i = 0; i < colNodes.length; i += 1) {
+            colNode = colNodes[i];
+            col = {
+                key: colNode.getAttribute('data-col'),
+                sortable: !colNode.getAttribute('data-nosort'),
+                type: colNode.getAttribute('data-type') || 'string'
+            };
+            cols.push(col);
+            if (col.sortable) {
+                col.defaultDescSort = col.type === 'number';
+                colNode.innerHTML =
+                    colNode.innerHTML + '<span class="sorter"></span>';
+            }
+        }
+        return cols;
+    }
+    // attaches a data attribute to every tr element with an object
+    // of data values keyed by column name
+    function loadRowData(tableRow) {
+        var tableCols = tableRow.querySelectorAll('td'),
+            colNode,
+            col,
+            data = {},
+            i,
+            val;
+        for (i = 0; i < tableCols.length; i += 1) {
+            colNode = tableCols[i];
+            col = cols[i];
+            val = colNode.getAttribute('data-value');
+            if (col.type === 'number') {
+                val = Number(val);
+            }
+            data[col.key] = val;
+        }
+        return data;
+    }
+    // loads all row data
+    function loadData() {
+        var rows = getTableBody().querySelectorAll('tr'),
+            i;
+
+        for (i = 0; i < rows.length; i += 1) {
+            rows[i].data = loadRowData(rows[i]);
+        }
+    }
+    // sorts the table using the data for the ith column
+    function sortByIndex(index, desc) {
+        var key = cols[index].key,
+            sorter = function(a, b) {
+                a = a.data[key];
+                b = b.data[key];
+                return a < b ? -1 : a > b ? 1 : 0;
+            },
+            finalSorter = sorter,
+            tableBody = document.querySelector('.coverage-summary tbody'),
+            rowNodes = tableBody.querySelectorAll('tr'),
+            rows = [],
+            i;
+
+        if (desc) {
+            finalSorter = function(a, b) {
+                return -1 * sorter(a, b);
+            };
+        }
+
+        for (i = 0; i < rowNodes.length; i += 1) {
+            rows.push(rowNodes[i]);
+            tableBody.removeChild(rowNodes[i]);
+        }
+
+        rows.sort(finalSorter);
+
+        for (i = 0; i < rows.length; i += 1) {
+            tableBody.appendChild(rows[i]);
+        }
+    }
+    // removes sort indicators for current column being sorted
+    function removeSortIndicators() {
+        var col = getNthColumn(currentSort.index),
+            cls = col.className;
+
+        cls = cls.replace(/ sorted$/, '').replace(/ sorted-desc$/, '');
+        col.className = cls;
+    }
+    // adds sort indicators for current column being sorted
+    function addSortIndicators() {
+        getNthColumn(currentSort.index).className += currentSort.desc
+            ? ' sorted-desc'
+            : ' sorted';
+    }
+    // adds event listeners for all sorter widgets
+    function enableUI() {
+        var i,
+            el,
+            ithSorter = function ithSorter(i) {
+                var col = cols[i];
+
+                return function() {
+                    var desc = col.defaultDescSort;
+
+                    if (currentSort.index === i) {
+                        desc = !currentSort.desc;
+                    }
+                    sortByIndex(i, desc);
+                    removeSortIndicators();
+                    currentSort.index = i;
+                    currentSort.desc = desc;
+                    addSortIndicators();
+                };
+            };
+        for (i = 0; i < cols.length; i += 1) {
+            if (cols[i].sortable) {
+                // add the click event handler on the th so users
+                // dont have to click on those tiny arrows
+                el = getNthColumn(i).querySelector('.sorter').parentElement;
+                if (el.addEventListener) {
+                    el.addEventListener('click', ithSorter(i));
+                } else {
+                    el.attachEvent('onclick', ithSorter(i));
+                }
+            }
+        }
+    }
+    // adds sorting functionality to the UI
+    return function() {
+        if (!getTable()) {
+            return;
+        }
+        cols = loadColumns();
+        loadData();
+        addSearchBox();
+        addSortIndicators();
+        enableUI();
+    };
+})();
+
+window.addEventListener('load', addSorting);
diff --git a/frontend/coverage/src/App.css.html b/frontend/coverage/src/App.css.html
new file mode 100644
index 0000000..4df3a49
--- /dev/null
+++ b/frontend/coverage/src/App.css.html
@@ -0,0 +1,211 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src/App.css</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../prettify.css" />
+    <link rel="stylesheet" href="../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../index.html">All files</a> / <a href="index.html">src</a> App.css</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line low'></div>
+    <pre><table class="coverage">
+<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
+<a name='L2'></a><a href='#L2'>2</a>
+<a name='L3'></a><a href='#L3'>3</a>
+<a name='L4'></a><a href='#L4'>4</a>
+<a name='L5'></a><a href='#L5'>5</a>
+<a name='L6'></a><a href='#L6'>6</a>
+<a name='L7'></a><a href='#L7'>7</a>
+<a name='L8'></a><a href='#L8'>8</a>
+<a name='L9'></a><a href='#L9'>9</a>
+<a name='L10'></a><a href='#L10'>10</a>
+<a name='L11'></a><a href='#L11'>11</a>
+<a name='L12'></a><a href='#L12'>12</a>
+<a name='L13'></a><a href='#L13'>13</a>
+<a name='L14'></a><a href='#L14'>14</a>
+<a name='L15'></a><a href='#L15'>15</a>
+<a name='L16'></a><a href='#L16'>16</a>
+<a name='L17'></a><a href='#L17'>17</a>
+<a name='L18'></a><a href='#L18'>18</a>
+<a name='L19'></a><a href='#L19'>19</a>
+<a name='L20'></a><a href='#L20'>20</a>
+<a name='L21'></a><a href='#L21'>21</a>
+<a name='L22'></a><a href='#L22'>22</a>
+<a name='L23'></a><a href='#L23'>23</a>
+<a name='L24'></a><a href='#L24'>24</a>
+<a name='L25'></a><a href='#L25'>25</a>
+<a name='L26'></a><a href='#L26'>26</a>
+<a name='L27'></a><a href='#L27'>27</a>
+<a name='L28'></a><a href='#L28'>28</a>
+<a name='L29'></a><a href='#L29'>29</a>
+<a name='L30'></a><a href='#L30'>30</a>
+<a name='L31'></a><a href='#L31'>31</a>
+<a name='L32'></a><a href='#L32'>32</a>
+<a name='L33'></a><a href='#L33'>33</a>
+<a name='L34'></a><a href='#L34'>34</a>
+<a name='L35'></a><a href='#L35'>35</a>
+<a name='L36'></a><a href='#L36'>36</a>
+<a name='L37'></a><a href='#L37'>37</a>
+<a name='L38'></a><a href='#L38'>38</a>
+<a name='L39'></a><a href='#L39'>39</a>
+<a name='L40'></a><a href='#L40'>40</a>
+<a name='L41'></a><a href='#L41'>41</a>
+<a name='L42'></a><a href='#L42'>42</a>
+<a name='L43'></a><a href='#L43'>43</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">#root {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+&nbsp;
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.react:hover {
+  filter: drop-shadow(0 0 2em #61dafbaa);
+}
+&nbsp;
+@keyframes logo-spin {
+  from {
+    transform: rotate(0deg);
+  }
+  to {
+    transform: rotate(360deg);
+  }
+}
+&nbsp;
+@media (prefers-reduced-motion: no-preference) {
+  a:nth-of-type(2) .logo {
+    animation: logo-spin infinite 20s linear;
+  }
+}
+&nbsp;
+.card {
+  padding: 2em;
+}
+&nbsp;
+.read-the-docs {
+  color: #888;
+}
+&nbsp;</pre></td></tr></table></pre>
+
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../sorter.js"></script>
+        <script src="../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/src/App.tsx.html b/frontend/coverage/src/App.tsx.html
new file mode 100644
index 0000000..7a8d1c9
--- /dev/null
+++ b/frontend/coverage/src/App.tsx.html
@@ -0,0 +1,271 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src/App.tsx</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../prettify.css" />
+    <link rel="stylesheet" href="../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../index.html">All files</a> / <a href="index.html">src</a> App.tsx</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">80% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>12/15</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">66.66% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>4/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">83.33% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>5/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">80% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>12/15</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line high'></div>
+    <pre><table class="coverage">
+<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
+<a name='L2'></a><a href='#L2'>2</a>
+<a name='L3'></a><a href='#L3'>3</a>
+<a name='L4'></a><a href='#L4'>4</a>
+<a name='L5'></a><a href='#L5'>5</a>
+<a name='L6'></a><a href='#L6'>6</a>
+<a name='L7'></a><a href='#L7'>7</a>
+<a name='L8'></a><a href='#L8'>8</a>
+<a name='L9'></a><a href='#L9'>9</a>
+<a name='L10'></a><a href='#L10'>10</a>
+<a name='L11'></a><a href='#L11'>11</a>
+<a name='L12'></a><a href='#L12'>12</a>
+<a name='L13'></a><a href='#L13'>13</a>
+<a name='L14'></a><a href='#L14'>14</a>
+<a name='L15'></a><a href='#L15'>15</a>
+<a name='L16'></a><a href='#L16'>16</a>
+<a name='L17'></a><a href='#L17'>17</a>
+<a name='L18'></a><a href='#L18'>18</a>
+<a name='L19'></a><a href='#L19'>19</a>
+<a name='L20'></a><a href='#L20'>20</a>
+<a name='L21'></a><a href='#L21'>21</a>
+<a name='L22'></a><a href='#L22'>22</a>
+<a name='L23'></a><a href='#L23'>23</a>
+<a name='L24'></a><a href='#L24'>24</a>
+<a name='L25'></a><a href='#L25'>25</a>
+<a name='L26'></a><a href='#L26'>26</a>
+<a name='L27'></a><a href='#L27'>27</a>
+<a name='L28'></a><a href='#L28'>28</a>
+<a name='L29'></a><a href='#L29'>29</a>
+<a name='L30'></a><a href='#L30'>30</a>
+<a name='L31'></a><a href='#L31'>31</a>
+<a name='L32'></a><a href='#L32'>32</a>
+<a name='L33'></a><a href='#L33'>33</a>
+<a name='L34'></a><a href='#L34'>34</a>
+<a name='L35'></a><a href='#L35'>35</a>
+<a name='L36'></a><a href='#L36'>36</a>
+<a name='L37'></a><a href='#L37'>37</a>
+<a name='L38'></a><a href='#L38'>38</a>
+<a name='L39'></a><a href='#L39'>39</a>
+<a name='L40'></a><a href='#L40'>40</a>
+<a name='L41'></a><a href='#L41'>41</a>
+<a name='L42'></a><a href='#L42'>42</a>
+<a name='L43'></a><a href='#L43'>43</a>
+<a name='L44'></a><a href='#L44'>44</a>
+<a name='L45'></a><a href='#L45'>45</a>
+<a name='L46'></a><a href='#L46'>46</a>
+<a name='L47'></a><a href='#L47'>47</a>
+<a name='L48'></a><a href='#L48'>48</a>
+<a name='L49'></a><a href='#L49'>49</a>
+<a name='L50'></a><a href='#L50'>50</a>
+<a name='L51'></a><a href='#L51'>51</a>
+<a name='L52'></a><a href='#L52'>52</a>
+<a name='L53'></a><a href='#L53'>53</a>
+<a name='L54'></a><a href='#L54'>54</a>
+<a name='L55'></a><a href='#L55'>55</a>
+<a name='L56'></a><a href='#L56'>56</a>
+<a name='L57'></a><a href='#L57'>57</a>
+<a name='L58'></a><a href='#L58'>58</a>
+<a name='L59'></a><a href='#L59'>59</a>
+<a name='L60'></a><a href='#L60'>60</a>
+<a name='L61'></a><a href='#L61'>61</a>
+<a name='L62'></a><a href='#L62'>62</a>
+<a name='L63'></a><a href='#L63'>63</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-no">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import React, { useEffect, useState } from 'react';
+import { BrowserRouter, Routes, Route, Navigate, useLocation } from 'react-router-dom';
+import Login from './components/Login';
+import './App.css';
+&nbsp;
+// Protected Route wrapper
+function RequireAuth({ children }: { children: React.ReactElement }) {
+  const [auth, setAuth] = useState&lt;boolean | null&gt;(null);
+  const location = useLocation();
+&nbsp;
+  useEffect(() =&gt; {
+    fetch('/api/auth')
+      .then((res) =&gt; {
+        if (res.ok) {
+          setAuth(true);
+        } else <span class="missing-if-branch" title="else path not taken" >E</span>{
+<span class="cstat-no" title="statement not covered" >          setAuth(false);</span>
+        }
+      })
+      .catch(<span class="fstat-no" title="function not covered" >() =&gt; <span class="cstat-no" title="statement not covered" >s</span>etAuth(false))</span>;
+  }, []);
+&nbsp;
+  if (auth === null) {
+    return &lt;div&gt;Loading...&lt;/div&gt;;
+  }
+&nbsp;
+  <span class="missing-if-branch" title="if path not taken" >I</span>if (!auth) {
+<span class="cstat-no" title="statement not covered" >    return &lt;Navigate to="/login" state={{ from: location }} replace /&gt;;</span>
+  }
+&nbsp;
+  return children;
+}
+&nbsp;
+function Dashboard() {
+  // Placeholder for now
+  return (
+    &lt;div&gt;
+      &lt;h1&gt;Dashboard&lt;/h1&gt;
+      &lt;p&gt;Welcome to the new Neko/v2 frontend.&lt;/p&gt;
+    &lt;/div&gt;
+  )
+}
+&nbsp;
+function App() {
+  return (
+    &lt;BrowserRouter basename="/v2"&gt;
+      &lt;Routes&gt;
+        &lt;Route path="/login" element={&lt;Login /&gt;} /&gt;
+        &lt;Route
+          path="/*"
+          element={
+            &lt;RequireAuth&gt;
+              &lt;Dashboard /&gt;
+            &lt;/RequireAuth&gt;
+          }
+        /&gt;
+      &lt;/Routes&gt;
+    &lt;/BrowserRouter&gt;
+  );
+}
+&nbsp;
+export default App;
+&nbsp;</pre></td></tr></table></pre>
+
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../sorter.js"></script>
+        <script src="../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/src/components/Login.css.html b/frontend/coverage/src/components/Login.css.html
new file mode 100644
index 0000000..3c90f72
--- /dev/null
+++ b/frontend/coverage/src/components/Login.css.html
@@ -0,0 +1,274 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src/components/Login.css</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../../index.html">All files</a> / <a href="index.html">src/components</a> Login.css</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">0% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>0/0</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line low'></div>
+    <pre><table class="coverage">
+<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
+<a name='L2'></a><a href='#L2'>2</a>
+<a name='L3'></a><a href='#L3'>3</a>
+<a name='L4'></a><a href='#L4'>4</a>
+<a name='L5'></a><a href='#L5'>5</a>
+<a name='L6'></a><a href='#L6'>6</a>
+<a name='L7'></a><a href='#L7'>7</a>
+<a name='L8'></a><a href='#L8'>8</a>
+<a name='L9'></a><a href='#L9'>9</a>
+<a name='L10'></a><a href='#L10'>10</a>
+<a name='L11'></a><a href='#L11'>11</a>
+<a name='L12'></a><a href='#L12'>12</a>
+<a name='L13'></a><a href='#L13'>13</a>
+<a name='L14'></a><a href='#L14'>14</a>
+<a name='L15'></a><a href='#L15'>15</a>
+<a name='L16'></a><a href='#L16'>16</a>
+<a name='L17'></a><a href='#L17'>17</a>
+<a name='L18'></a><a href='#L18'>18</a>
+<a name='L19'></a><a href='#L19'>19</a>
+<a name='L20'></a><a href='#L20'>20</a>
+<a name='L21'></a><a href='#L21'>21</a>
+<a name='L22'></a><a href='#L22'>22</a>
+<a name='L23'></a><a href='#L23'>23</a>
+<a name='L24'></a><a href='#L24'>24</a>
+<a name='L25'></a><a href='#L25'>25</a>
+<a name='L26'></a><a href='#L26'>26</a>
+<a name='L27'></a><a href='#L27'>27</a>
+<a name='L28'></a><a href='#L28'>28</a>
+<a name='L29'></a><a href='#L29'>29</a>
+<a name='L30'></a><a href='#L30'>30</a>
+<a name='L31'></a><a href='#L31'>31</a>
+<a name='L32'></a><a href='#L32'>32</a>
+<a name='L33'></a><a href='#L33'>33</a>
+<a name='L34'></a><a href='#L34'>34</a>
+<a name='L35'></a><a href='#L35'>35</a>
+<a name='L36'></a><a href='#L36'>36</a>
+<a name='L37'></a><a href='#L37'>37</a>
+<a name='L38'></a><a href='#L38'>38</a>
+<a name='L39'></a><a href='#L39'>39</a>
+<a name='L40'></a><a href='#L40'>40</a>
+<a name='L41'></a><a href='#L41'>41</a>
+<a name='L42'></a><a href='#L42'>42</a>
+<a name='L43'></a><a href='#L43'>43</a>
+<a name='L44'></a><a href='#L44'>44</a>
+<a name='L45'></a><a href='#L45'>45</a>
+<a name='L46'></a><a href='#L46'>46</a>
+<a name='L47'></a><a href='#L47'>47</a>
+<a name='L48'></a><a href='#L48'>48</a>
+<a name='L49'></a><a href='#L49'>49</a>
+<a name='L50'></a><a href='#L50'>50</a>
+<a name='L51'></a><a href='#L51'>51</a>
+<a name='L52'></a><a href='#L52'>52</a>
+<a name='L53'></a><a href='#L53'>53</a>
+<a name='L54'></a><a href='#L54'>54</a>
+<a name='L55'></a><a href='#L55'>55</a>
+<a name='L56'></a><a href='#L56'>56</a>
+<a name='L57'></a><a href='#L57'>57</a>
+<a name='L58'></a><a href='#L58'>58</a>
+<a name='L59'></a><a href='#L59'>59</a>
+<a name='L60'></a><a href='#L60'>60</a>
+<a name='L61'></a><a href='#L61'>61</a>
+<a name='L62'></a><a href='#L62'>62</a>
+<a name='L63'></a><a href='#L63'>63</a>
+<a name='L64'></a><a href='#L64'>64</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">.login-container {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  height: 100vh;
+  background-color: #f5f5f5;
+}
+&nbsp;
+.login-form {
+  background: white;
+  padding: 2rem;
+  border-radius: 8px;
+  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+  width: 100%;
+  max-width: 400px;
+}
+&nbsp;
+.login-form h1 {
+  margin-bottom: 2rem;
+  text-align: center;
+  color: #333;
+}
+&nbsp;
+.form-group {
+  margin-bottom: 1.5rem;
+}
+&nbsp;
+.form-group label {
+  display: block;
+  margin-bottom: 0.5rem;
+  font-weight: bold;
+  color: #555;
+}
+&nbsp;
+.form-group input {
+  width: 100%;
+  padding: 0.75rem;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  font-size: 1rem;
+}
+&nbsp;
+.error-message {
+  color: #dc3545;
+  margin-bottom: 1rem;
+  text-align: center;
+}
+&nbsp;
+button[type="submit"] {
+  width: 100%;
+  padding: 0.75rem;
+  background-color: #007bff;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  font-size: 1rem;
+  cursor: pointer;
+  transition: background-color 0.2s;
+}
+&nbsp;
+button[type="submit"]:hover {
+  background-color: #0056b3;
+}
+&nbsp;</pre></td></tr></table></pre>
+
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../../sorter.js"></script>
+        <script src="../../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/src/components/Login.tsx.html b/frontend/coverage/src/components/Login.tsx.html
new file mode 100644
index 0000000..9cecda8
--- /dev/null
+++ b/frontend/coverage/src/components/Login.tsx.html
@@ -0,0 +1,247 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src/components/Login.tsx</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../../index.html">All files</a> / <a href="index.html">src/components</a> Login.tsx</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>17/17</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">83.33% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>5/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>3/3</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>17/17</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line high'></div>
+    <pre><table class="coverage">
+<tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
+<a name='L2'></a><a href='#L2'>2</a>
+<a name='L3'></a><a href='#L3'>3</a>
+<a name='L4'></a><a href='#L4'>4</a>
+<a name='L5'></a><a href='#L5'>5</a>
+<a name='L6'></a><a href='#L6'>6</a>
+<a name='L7'></a><a href='#L7'>7</a>
+<a name='L8'></a><a href='#L8'>8</a>
+<a name='L9'></a><a href='#L9'>9</a>
+<a name='L10'></a><a href='#L10'>10</a>
+<a name='L11'></a><a href='#L11'>11</a>
+<a name='L12'></a><a href='#L12'>12</a>
+<a name='L13'></a><a href='#L13'>13</a>
+<a name='L14'></a><a href='#L14'>14</a>
+<a name='L15'></a><a href='#L15'>15</a>
+<a name='L16'></a><a href='#L16'>16</a>
+<a name='L17'></a><a href='#L17'>17</a>
+<a name='L18'></a><a href='#L18'>18</a>
+<a name='L19'></a><a href='#L19'>19</a>
+<a name='L20'></a><a href='#L20'>20</a>
+<a name='L21'></a><a href='#L21'>21</a>
+<a name='L22'></a><a href='#L22'>22</a>
+<a name='L23'></a><a href='#L23'>23</a>
+<a name='L24'></a><a href='#L24'>24</a>
+<a name='L25'></a><a href='#L25'>25</a>
+<a name='L26'></a><a href='#L26'>26</a>
+<a name='L27'></a><a href='#L27'>27</a>
+<a name='L28'></a><a href='#L28'>28</a>
+<a name='L29'></a><a href='#L29'>29</a>
+<a name='L30'></a><a href='#L30'>30</a>
+<a name='L31'></a><a href='#L31'>31</a>
+<a name='L32'></a><a href='#L32'>32</a>
+<a name='L33'></a><a href='#L33'>33</a>
+<a name='L34'></a><a href='#L34'>34</a>
+<a name='L35'></a><a href='#L35'>35</a>
+<a name='L36'></a><a href='#L36'>36</a>
+<a name='L37'></a><a href='#L37'>37</a>
+<a name='L38'></a><a href='#L38'>38</a>
+<a name='L39'></a><a href='#L39'>39</a>
+<a name='L40'></a><a href='#L40'>40</a>
+<a name='L41'></a><a href='#L41'>41</a>
+<a name='L42'></a><a href='#L42'>42</a>
+<a name='L43'></a><a href='#L43'>43</a>
+<a name='L44'></a><a href='#L44'>44</a>
+<a name='L45'></a><a href='#L45'>45</a>
+<a name='L46'></a><a href='#L46'>46</a>
+<a name='L47'></a><a href='#L47'>47</a>
+<a name='L48'></a><a href='#L48'>48</a>
+<a name='L49'></a><a href='#L49'>49</a>
+<a name='L50'></a><a href='#L50'>50</a>
+<a name='L51'></a><a href='#L51'>51</a>
+<a name='L52'></a><a href='#L52'>52</a>
+<a name='L53'></a><a href='#L53'>53</a>
+<a name='L54'></a><a href='#L54'>54</a>
+<a name='L55'></a><a href='#L55'>55</a></td><td class="line-coverage quiet"><span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">14x</span>
+<span class="cline-any cline-yes">14x</span>
+<span class="cline-any cline-yes">14x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">14x</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">2x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">1x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">14x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-yes">3x</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span>
+<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">import { useState, type FormEvent } from 'react';
+import { useNavigate } from 'react-router-dom';
+import './Login.css';
+&nbsp;
+export default function Login() {
+    const [password, setPassword] = useState('');
+    const [error, setError] = useState('');
+    const navigate = useNavigate();
+&nbsp;
+    const handleSubmit = async (e: FormEvent) =&gt; {
+        e.preventDefault();
+        setError('');
+&nbsp;
+        try {
+            // Use URLSearchParams to send as form-urlencoded, matching backend expectation
+            const params = new URLSearchParams();
+            params.append('password', password);
+&nbsp;
+            const res = await fetch('/api/login', {
+                method: 'POST',
+                body: params,
+            });
+&nbsp;
+            if (res.ok) {
+                navigate('/');
+            } else {
+                const data = await res.json();
+                setError(data.message || <span class="branch-1 cbranch-no" title="branch not covered" >'Login failed')</span>;
+            }
+        } catch (err) {
+            setError('Network error');
+        }
+    };
+&nbsp;
+    return (
+        &lt;div className="login-container"&gt;
+            &lt;form onSubmit={handleSubmit} className="login-form"&gt;
+                &lt;h1&gt;neko rss mode&lt;/h1&gt;
+                &lt;div className="form-group"&gt;
+                    &lt;label htmlFor="password"&gt;password&lt;/label&gt;
+                    &lt;input
+                        id="password"
+                        type="password"
+                        value={password}
+                        onChange={(e) =&gt; setPassword(e.target.value)}
+                        autoFocus
+                    /&gt;
+                &lt;/div&gt;
+                {error &amp;&amp; &lt;div className="error-message"&gt;{error}&lt;/div&gt;}
+                &lt;button type="submit"&gt;login&lt;/button&gt;
+            &lt;/form&gt;
+        &lt;/div&gt;
+    );
+}
+&nbsp;</pre></td></tr></table></pre>
+
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../../sorter.js"></script>
+        <script src="../../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/src/components/index.html b/frontend/coverage/src/components/index.html
new file mode 100644
index 0000000..2328bb6
--- /dev/null
+++ b/frontend/coverage/src/components/index.html
@@ -0,0 +1,131 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src/components</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../../prettify.css" />
+    <link rel="stylesheet" href="../../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../../index.html">All files</a> src/components</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>17/17</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">83.33% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>5/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>3/3</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">100% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>17/17</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line high'></div>
+    <div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file empty" data-value="Login.css"><a href="Login.css.html">Login.css</a></td>
+	<td data-value="0" class="pic empty">
+	<div class="chart"><div class="cover-fill" style="width: 0%"></div><div class="cover-empty" style="width: 100%"></div></div>
+	</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="Login.tsx"><a href="Login.tsx.html">Login.tsx</a></td>
+	<td data-value="100" class="pic high">
+	<div class="chart"><div class="cover-fill cover-full" style="width: 100%"></div><div class="cover-empty" style="width: 0%"></div></div>
+	</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="17" class="abs high">17/17</td>
+	<td data-value="83.33" class="pct high">83.33%</td>
+	<td data-value="6" class="abs high">5/6</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="3" class="abs high">3/3</td>
+	<td data-value="100" class="pct high">100%</td>
+	<td data-value="17" class="abs high">17/17</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../../sorter.js"></script>
+        <script src="../../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/coverage/src/index.html b/frontend/coverage/src/index.html
new file mode 100644
index 0000000..a0ac8bf
--- /dev/null
+++ b/frontend/coverage/src/index.html
@@ -0,0 +1,131 @@
+
+<!doctype html>
+<html lang="en">
+
+<head>
+    <title>Code coverage report for src</title>
+    <meta charset="utf-8" />
+    <link rel="stylesheet" href="../prettify.css" />
+    <link rel="stylesheet" href="../base.css" />
+    <link rel="shortcut icon" type="image/x-icon" href="../favicon.png" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <style type='text/css'>
+        .coverage-summary .sorter {
+            background-image: url(../sort-arrow-sprite.png);
+        }
+    </style>
+</head>
+    
+<body>
+<div class='wrapper'>
+    <div class='pad1'>
+        <h1><a href="../index.html">All files</a> src</h1>
+        <div class='clearfix'>
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">80% </span>
+                <span class="quiet">Statements</span>
+                <span class='fraction'>12/15</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">66.66% </span>
+                <span class="quiet">Branches</span>
+                <span class='fraction'>4/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">83.33% </span>
+                <span class="quiet">Functions</span>
+                <span class='fraction'>5/6</span>
+            </div>
+        
+            
+            <div class='fl pad1y space-right2'>
+                <span class="strong">80% </span>
+                <span class="quiet">Lines</span>
+                <span class='fraction'>12/15</span>
+            </div>
+        
+            
+        </div>
+        <p class="quiet">
+            Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
+        </p>
+        <template id="filterTemplate">
+            <div class="quiet">
+                Filter:
+                <input type="search" id="fileSearch">
+            </div>
+        </template>
+    </div>
+    <div class='status-line high'></div>
+    <div class="pad1">
+<table class="coverage-summary">
+<thead>
+<tr>
+   <th data-col="file" data-fmt="html" data-html="true" class="file">File</th>
+   <th data-col="pic" data-type="number" data-fmt="html" data-html="true" class="pic"></th>
+   <th data-col="statements" data-type="number" data-fmt="pct" class="pct">Statements</th>
+   <th data-col="statements_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="branches" data-type="number" data-fmt="pct" class="pct">Branches</th>
+   <th data-col="branches_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="functions" data-type="number" data-fmt="pct" class="pct">Functions</th>
+   <th data-col="functions_raw" data-type="number" data-fmt="html" class="abs"></th>
+   <th data-col="lines" data-type="number" data-fmt="pct" class="pct">Lines</th>
+   <th data-col="lines_raw" data-type="number" data-fmt="html" class="abs"></th>
+</tr>
+</thead>
+<tbody><tr>
+	<td class="file empty" data-value="App.css"><a href="App.css.html">App.css</a></td>
+	<td data-value="0" class="pic empty">
+	<div class="chart"><div class="cover-fill" style="width: 0%"></div><div class="cover-empty" style="width: 100%"></div></div>
+	</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	<td data-value="0" class="pct empty">0%</td>
+	<td data-value="0" class="abs empty">0/0</td>
+	</tr>
+
+<tr>
+	<td class="file high" data-value="App.tsx"><a href="App.tsx.html">App.tsx</a></td>
+	<td data-value="80" class="pic high">
+	<div class="chart"><div class="cover-fill" style="width: 80%"></div><div class="cover-empty" style="width: 20%"></div></div>
+	</td>
+	<td data-value="80" class="pct high">80%</td>
+	<td data-value="15" class="abs high">12/15</td>
+	<td data-value="66.66" class="pct medium">66.66%</td>
+	<td data-value="6" class="abs medium">4/6</td>
+	<td data-value="83.33" class="pct high">83.33%</td>
+	<td data-value="6" class="abs high">5/6</td>
+	<td data-value="80" class="pct high">80%</td>
+	<td data-value="15" class="abs high">12/15</td>
+	</tr>
+
+</tbody>
+</table>
+</div>
+                <div class='push'></div><!-- for sticky footer -->
+            </div><!-- /wrapper -->
+            <div class='footer quiet pad2 space-top1 center small'>
+                Code coverage generated by
+                <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
+                at 2026-02-13T05:50:17.889Z
+            </div>
+        <script src="../prettify.js"></script>
+        <script>
+            window.onload = function () {
+                prettyPrint();
+            };
+        </script>
+        <script src="../sorter.js"></script>
+        <script src="../block-navigation.js"></script>
+    </body>
+</html>
+    
\ No newline at end of file
diff --git a/frontend/package-lock.json b/frontend/package-lock.json
index f103414..916b62c 100644
--- a/frontend/package-lock.json
+++ b/frontend/package-lock.json
@@ -9,7 +9,8 @@
       "version": "0.0.0",
       "dependencies": {
         "react": "^19.2.0",
-        "react-dom": "^19.2.0"
+        "react-dom": "^19.2.0",
+        "react-router-dom": "^7.13.0"
       },
       "devDependencies": {
         "@eslint/js": "^9.39.1",
@@ -19,6 +20,7 @@
         "@types/react": "^19.2.7",
         "@types/react-dom": "^19.2.3",
         "@vitejs/plugin-react": "^5.1.1",
+        "@vitest/coverage-v8": "^4.0.18",
         "eslint": "^9.39.1",
         "eslint-plugin-react-hooks": "^7.0.1",
         "eslint-plugin-react-refresh": "^0.4.24",
@@ -364,6 +366,15 @@
         "node": ">=6.9.0"
       }
     },
+    "node_modules/@bcoe/v8-coverage": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/@bcoe/v8-coverage/-/v8-coverage-1.0.2.tgz",
+      "integrity": "sha512-6zABk/ECA/QYSCQ1NGiVwwbQerUCZ+TQbp64Q3AgmfNvurHH0j8TtXa1qbShXA6qqkpAj4V5W8pP6mLe1mcMqA==",
+      "dev": true,
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@csstools/color-helpers": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/@csstools/color-helpers/-/color-helpers-6.0.1.tgz",
@@ -1949,6 +1960,36 @@
         "vite": "^4.2.0 || ^5.0.0 || ^6.0.0 || ^7.0.0"
       }
     },
+    "node_modules/@vitest/coverage-v8": {
+      "version": "4.0.18",
+      "resolved": "https://registry.npmjs.org/@vitest/coverage-v8/-/coverage-v8-4.0.18.tgz",
+      "integrity": "sha512-7i+N2i0+ME+2JFZhfuz7Tg/FqKtilHjGyGvoHYQ6iLV0zahbsJ9sljC9OcFcPDbhYKCet+sG8SsVqlyGvPflZg==",
+      "dev": true,
+      "dependencies": {
+        "@bcoe/v8-coverage": "^1.0.2",
+        "@vitest/utils": "4.0.18",
+        "ast-v8-to-istanbul": "^0.3.10",
+        "istanbul-lib-coverage": "^3.2.2",
+        "istanbul-lib-report": "^3.0.1",
+        "istanbul-reports": "^3.2.0",
+        "magicast": "^0.5.1",
+        "obug": "^2.1.1",
+        "std-env": "^3.10.0",
+        "tinyrainbow": "^3.0.3"
+      },
+      "funding": {
+        "url": "https://opencollective.com/vitest"
+      },
+      "peerDependencies": {
+        "@vitest/browser": "4.0.18",
+        "vitest": "4.0.18"
+      },
+      "peerDependenciesMeta": {
+        "@vitest/browser": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@vitest/expect": {
       "version": "4.0.18",
       "resolved": "https://registry.npmjs.org/@vitest/expect/-/expect-4.0.18.tgz",
@@ -2148,6 +2189,23 @@
         "node": ">=12"
       }
     },
+    "node_modules/ast-v8-to-istanbul": {
+      "version": "0.3.11",
+      "resolved": "https://registry.npmjs.org/ast-v8-to-istanbul/-/ast-v8-to-istanbul-0.3.11.tgz",
+      "integrity": "sha512-Qya9fkoofMjCBNVdWINMjB5KZvkYfaO9/anwkWnjxibpWUxo5iHl2sOdP7/uAqaRuUYuoo8rDwnbaaKVFxoUvw==",
+      "dev": true,
+      "dependencies": {
+        "@jridgewell/trace-mapping": "^0.3.31",
+        "estree-walker": "^3.0.3",
+        "js-tokens": "^10.0.0"
+      }
+    },
+    "node_modules/ast-v8-to-istanbul/node_modules/js-tokens": {
+      "version": "10.0.0",
+      "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-10.0.0.tgz",
+      "integrity": "sha512-lM/UBzQmfJRo9ABXbPWemivdCW8V2G8FHaHdypQaIy523snUjog0W71ayWXTjiR+ixeMyVHN2XcpnTd/liPg/Q==",
+      "dev": true
+    },
     "node_modules/balanced-match": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -2299,6 +2357,18 @@
       "integrity": "sha512-Kvp459HrV2FEJ1CAsi1Ku+MY3kasH19TFykTz2xWmMeq6bk2NU3XXvfJ+Q61m0xktWwt+1HSYf3JZsTms3aRJg==",
       "dev": true
     },
+    "node_modules/cookie": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.1.1.tgz",
+      "integrity": "sha512-ei8Aos7ja0weRpFzJnEA9UHJ/7XQmqglbRwnf2ATjcB9Wq874VKH9kfjjirM6UhU2/E5fFYadylyhFldcqSidQ==",
+      "engines": {
+        "node": ">=18"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/express"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -2863,6 +2933,12 @@
         "node": "^20.19.0 || ^22.12.0 || >=24.0.0"
       }
     },
+    "node_modules/html-escaper": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
+      "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg==",
+      "dev": true
+    },
     "node_modules/http-proxy-agent": {
       "version": "7.0.2",
       "resolved": "https://registry.npmjs.org/http-proxy-agent/-/http-proxy-agent-7.0.2.tgz",
@@ -2965,6 +3041,42 @@
       "integrity": "sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==",
       "dev": true
     },
+    "node_modules/istanbul-lib-coverage": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-3.2.2.tgz",
+      "integrity": "sha512-O8dpsF+r0WV/8MNRKfnmrtCWhuKjxrq2w+jpzBL5UZKTi2LeVWnWOmWRxFlesJONmc+wLAGvKQZEOanko0LFTg==",
+      "dev": true,
+      "engines": {
+        "node": ">=8"
+      }
+    },
+    "node_modules/istanbul-lib-report": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/istanbul-lib-report/-/istanbul-lib-report-3.0.1.tgz",
+      "integrity": "sha512-GCfE1mtsHGOELCU8e/Z7YWzpmybrx/+dSTfLrvY8qRmaY6zXTKWn6WQIjaAFw069icm6GVMNkgu0NzI4iPZUNw==",
+      "dev": true,
+      "dependencies": {
+        "istanbul-lib-coverage": "^3.0.0",
+        "make-dir": "^4.0.0",
+        "supports-color": "^7.1.0"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
+    "node_modules/istanbul-reports": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/istanbul-reports/-/istanbul-reports-3.2.0.tgz",
+      "integrity": "sha512-HGYWWS/ehqTV3xN10i23tkPkpH46MLCIMFNCaaKNavAXTF1RkqxawEPtnjnGZ6XKSInBKkiOA5BKS+aZiY3AvA==",
+      "dev": true,
+      "dependencies": {
+        "html-escaper": "^2.0.0",
+        "istanbul-lib-report": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=8"
+      }
+    },
     "node_modules/js-tokens": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
@@ -3135,6 +3247,44 @@
         "@jridgewell/sourcemap-codec": "^1.5.5"
       }
     },
+    "node_modules/magicast": {
+      "version": "0.5.2",
+      "resolved": "https://registry.npmjs.org/magicast/-/magicast-0.5.2.tgz",
+      "integrity": "sha512-E3ZJh4J3S9KfwdjZhe2afj6R9lGIN5Pher1pF39UGrXRqq/VDaGVIGN13BjHd2u8B61hArAGOnso7nBOouW3TQ==",
+      "dev": true,
+      "dependencies": {
+        "@babel/parser": "^7.29.0",
+        "@babel/types": "^7.29.0",
+        "source-map-js": "^1.2.1"
+      }
+    },
+    "node_modules/make-dir": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/make-dir/-/make-dir-4.0.0.tgz",
+      "integrity": "sha512-hXdUTZYIVOt1Ex//jAQi+wTZZpUpwBj/0QsOzqegb3rGMMeJiSEu5xLHnYfBrRV4RH2+OCSOO95Is/7x1WJ4bw==",
+      "dev": true,
+      "dependencies": {
+        "semver": "^7.5.3"
+      },
+      "engines": {
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
+    "node_modules/make-dir/node_modules/semver": {
+      "version": "7.7.4",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.4.tgz",
+      "integrity": "sha512-vFKC2IEtQnVhpT78h1Yp8wzwrf8CM+MzKMHGJZfBtzhZNycRFnXsHk6E5TxIkkMsgNS7mdX3AGB7x2QM2di4lA==",
+      "dev": true,
+      "bin": {
+        "semver": "bin/semver.js"
+      },
+      "engines": {
+        "node": ">=10"
+      }
+    },
     "node_modules/mdn-data": {
       "version": "2.12.2",
       "resolved": "https://registry.npmjs.org/mdn-data/-/mdn-data-2.12.2.tgz",
@@ -3430,6 +3580,42 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.13.0",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.13.0.tgz",
+      "integrity": "sha512-PZgus8ETambRT17BUm/LL8lX3Of+oiLaPuVTRH3l1eLvSPpKO3AvhAEb5N7ihAFZQrYDqkvvWfFh9p0z9VsjLw==",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-router-dom": {
+      "version": "7.13.0",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.13.0.tgz",
+      "integrity": "sha512-5CO/l5Yahi2SKC6rGZ+HDEjpjkGaG/ncEP7eWFTvFxbHP8yeeI0PxTDjimtpXYlR3b3i9/WIL4VJttPrESIf2g==",
+      "dependencies": {
+        "react-router": "7.13.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      }
+    },
     "node_modules/redent": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/redent/-/redent-3.0.0.tgz",
@@ -3531,6 +3717,11 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.2",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.2.tgz",
+      "integrity": "sha512-oeM1lpU/UvhTxw+g3cIfxXHyJRc/uidd3yK1P242gzHds0udQBYzs3y8j4gCCW+ZJ7ad0yctld8RYO+bdurlvw=="
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",
diff --git a/frontend/package.json b/frontend/package.json
index 564424a..fbd5764 100644
--- a/frontend/package.json
+++ b/frontend/package.json
@@ -12,7 +12,8 @@
   },
   "dependencies": {
     "react": "^19.2.0",
-    "react-dom": "^19.2.0"
+    "react-dom": "^19.2.0",
+    "react-router-dom": "^7.13.0"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
@@ -22,6 +23,7 @@
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
     "@vitejs/plugin-react": "^5.1.1",
+    "@vitest/coverage-v8": "^4.0.18",
     "eslint": "^9.39.1",
     "eslint-plugin-react-hooks": "^7.0.1",
     "eslint-plugin-react-refresh": "^0.4.24",
@@ -32,4 +34,4 @@
     "vite": "^7.3.1",
     "vitest": "^4.0.18"
   }
-}
\ No newline at end of file
+}
diff --git a/frontend/src/App.test.tsx b/frontend/src/App.test.tsx
index f1572a7..8e3d805 100644
--- a/frontend/src/App.test.tsx
+++ b/frontend/src/App.test.tsx
@@ -1,10 +1,32 @@
-import { render, screen } from '@testing-library/react';
+import { render, screen, waitFor } from '@testing-library/react';
 import App from './App';
-import { describe, it, expect } from 'vitest';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
 
 describe('App', () => {
-    it('renders heading', () => {
+    beforeEach(() => {
+        vi.resetAllMocks();
+        global.fetch = vi.fn();
+    });
+
+    it('renders login on initial load (unauthenticated)', async () => {
+        (global.fetch as any).mockResolvedValueOnce({
+            ok: false,
+        });
+        window.history.pushState({}, 'Test page', '/v2/login');
         render(<App />);
-        expect(screen.getByRole('heading', { level: 1 })).toBeInTheDocument(); // Adjust based on actual App content
+        expect(screen.getByRole('button', { name: /login/i })).toBeInTheDocument();
+    });
+
+    it('renders dashboard when authenticated', async () => {
+        (global.fetch as any).mockResolvedValueOnce({
+            ok: true,
+        });
+
+        window.history.pushState({}, 'Test page', '/v2/');
+        render(<App />);
+
+        await waitFor(() => {
+            expect(screen.getByText(/dashboard/i)).toBeInTheDocument();
+        });
     });
 });
diff --git a/frontend/src/App.tsx b/frontend/src/App.tsx
index 3d7ded3..b986198 100644
--- a/frontend/src/App.tsx
+++ b/frontend/src/App.tsx
@@ -1,35 +1,62 @@
-import { useState } from 'react'
-import reactLogo from './assets/react.svg'
-import viteLogo from '/vite.svg'
-import './App.css'
+import React, { useEffect, useState } from 'react';
+import { BrowserRouter, Routes, Route, Navigate, useLocation } from 'react-router-dom';
+import Login from './components/Login';
+import './App.css';
 
-function App() {
-  const [count, setCount] = useState(0)
+// Protected Route wrapper
+function RequireAuth({ children }: { children: React.ReactElement }) {
+  const [auth, setAuth] = useState<boolean | null>(null);
+  const location = useLocation();
+
+  useEffect(() => {
+    fetch('/api/auth')
+      .then((res) => {
+        if (res.ok) {
+          setAuth(true);
+        } else {
+          setAuth(false);
+        }
+      })
+      .catch(() => setAuth(false));
+  }, []);
+
+  if (auth === null) {
+    return <div>Loading...</div>;
+  }
+
+  if (!auth) {
+    return <Navigate to="/login" state={{ from: location }} replace />;
+  }
+
+  return children;
+}
 
+function Dashboard() {
+  // Placeholder for now
   return (
-    <>
-      <div>
-        <a href="https://vite.dev" target="_blank">
-          <img src={viteLogo} className="logo" alt="Vite logo" />
-        </a>
-        <a href="https://react.dev" target="_blank">
-          <img src={reactLogo} className="logo react" alt="React logo" />
-        </a>
-      </div>
-      <h1>Vite + React</h1>
-      <div className="card">
-        <button onClick={() => setCount((count) => count + 1)}>
-          count is {count}
-        </button>
-        <p>
-          Edit <code>src/App.tsx</code> and save to test HMR
-        </p>
-      </div>
-      <p className="read-the-docs">
-        Click on the Vite and React logos to learn more
-      </p>
-    </>
+    <div>
+      <h1>Dashboard</h1>
+      <p>Welcome to the new Neko/v2 frontend.</p>
+    </div>
   )
 }
 
-export default App
+function App() {
+  return (
+    <BrowserRouter basename="/v2">
+      <Routes>
+        <Route path="/login" element={<Login />} />
+        <Route
+          path="/*"
+          element={
+            <RequireAuth>
+              <Dashboard />
+            </RequireAuth>
+          }
+        />
+      </Routes>
+    </BrowserRouter>
+  );
+}
+
+export default App;
diff --git a/frontend/src/components/Login.css b/frontend/src/components/Login.css
new file mode 100644
index 0000000..f1ca976
--- /dev/null
+++ b/frontend/src/components/Login.css
@@ -0,0 +1,63 @@
+.login-container {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  height: 100vh;
+  background-color: #f5f5f5;
+}
+
+.login-form {
+  background: white;
+  padding: 2rem;
+  border-radius: 8px;
+  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
+  width: 100%;
+  max-width: 400px;
+}
+
+.login-form h1 {
+  margin-bottom: 2rem;
+  text-align: center;
+  color: #333;
+}
+
+.form-group {
+  margin-bottom: 1.5rem;
+}
+
+.form-group label {
+  display: block;
+  margin-bottom: 0.5rem;
+  font-weight: bold;
+  color: #555;
+}
+
+.form-group input {
+  width: 100%;
+  padding: 0.75rem;
+  border: 1px solid #ddd;
+  border-radius: 4px;
+  font-size: 1rem;
+}
+
+.error-message {
+  color: #dc3545;
+  margin-bottom: 1rem;
+  text-align: center;
+}
+
+button[type="submit"] {
+  width: 100%;
+  padding: 0.75rem;
+  background-color: #007bff;
+  color: white;
+  border: none;
+  border-radius: 4px;
+  font-size: 1rem;
+  cursor: pointer;
+  transition: background-color 0.2s;
+}
+
+button[type="submit"]:hover {
+  background-color: #0056b3;
+}
diff --git a/frontend/src/components/Login.test.tsx b/frontend/src/components/Login.test.tsx
new file mode 100644
index 0000000..44d1371
--- /dev/null
+++ b/frontend/src/components/Login.test.tsx
@@ -0,0 +1,76 @@
+import { render, screen, fireEvent, waitFor } from '@testing-library/react';
+import { BrowserRouter } from 'react-router-dom';
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import Login from './Login';
+
+// Mock fetch
+global.fetch = vi.fn();
+
+const renderLogin = () => {
+    render(
+        <BrowserRouter>
+            <Login />
+        </BrowserRouter>
+    );
+};
+
+describe('Login Component', () => {
+    beforeEach(() => {
+        vi.resetAllMocks();
+    });
+
+    it('renders login form', () => {
+        renderLogin();
+        expect(screen.getByLabelText(/password/i)).toBeInTheDocument();
+        expect(screen.getByRole('button', { name: /login/i })).toBeInTheDocument();
+    });
+
+    it('handles successful login', async () => {
+        (global.fetch as any).mockResolvedValueOnce({
+            ok: true,
+        });
+
+        renderLogin();
+
+        fireEvent.change(screen.getByLabelText(/password/i), { target: { value: 'secret' } });
+        fireEvent.click(screen.getByRole('button', { name: /login/i }));
+
+        await waitFor(() => {
+            expect(global.fetch).toHaveBeenCalledWith('/api/login', expect.objectContaining({
+                method: 'POST',
+            }));
+        });
+        // Navigation assertion is tricky without mocking useNavigate, 
+        // but if no error is shown, we assume success path was taken
+        expect(screen.queryByText(/login failed/i)).not.toBeInTheDocument();
+    });
+
+    it('handles failed login', async () => {
+        (global.fetch as any).mockResolvedValueOnce({
+            ok: false,
+            json: async () => ({ message: 'Bad credentials' }),
+        });
+
+        renderLogin();
+
+        fireEvent.change(screen.getByLabelText(/password/i), { target: { value: 'wrong' } });
+        fireEvent.click(screen.getByRole('button', { name: /login/i }));
+
+        await waitFor(() => {
+            expect(screen.getByText(/bad credentials/i)).toBeInTheDocument();
+        });
+    });
+
+    it('handles network error', async () => {
+        (global.fetch as any).mockRejectedValueOnce(new Error('Network error'));
+
+        renderLogin();
+
+        fireEvent.change(screen.getByLabelText(/password/i), { target: { value: 'secret' } });
+        fireEvent.click(screen.getByRole('button', { name: /login/i }));
+
+        await waitFor(() => {
+            expect(screen.getByText(/network error/i)).toBeInTheDocument();
+        });
+    });
+});
diff --git a/frontend/src/components/Login.tsx b/frontend/src/components/Login.tsx
new file mode 100644
index 0000000..2e8bbf7
--- /dev/null
+++ b/frontend/src/components/Login.tsx
@@ -0,0 +1,54 @@
+import { useState, type FormEvent } from 'react';
+import { useNavigate } from 'react-router-dom';
+import './Login.css';
+
+export default function Login() {
+    const [password, setPassword] = useState('');
+    const [error, setError] = useState('');
+    const navigate = useNavigate();
+
+    const handleSubmit = async (e: FormEvent) => {
+        e.preventDefault();
+        setError('');
+
+        try {
+            // Use URLSearchParams to send as form-urlencoded, matching backend expectation
+            const params = new URLSearchParams();
+            params.append('password', password);
+
+            const res = await fetch('/api/login', {
+                method: 'POST',
+                body: params,
+            });
+
+            if (res.ok) {
+                navigate('/');
+            } else {
+                const data = await res.json();
+                setError(data.message || 'Login failed');
+            }
+        } catch (err) {
+            setError('Network error');
+        }
+    };
+
+    return (
+        <div className="login-container">
+            <form onSubmit={handleSubmit} className="login-form">
+                <h1>neko rss mode</h1>
+                <div className="form-group">
+                    <label htmlFor="password">password</label>
+                    <input
+                        id="password"
+                        type="password"
+                        value={password}
+                        onChange={(e) => setPassword(e.target.value)}
+                        autoFocus
+                    />
+                </div>
+                {error && <div className="error-message">{error}</div>}
+                <button type="submit">login</button>
+            </form>
+        </div>
+    );
+}