Add performance benchmarks, stress tests, and frontend perf tests

Go benchmarks cover item CRUD/filter/sanitization, API endpoints (stream,
item update, feed list), middleware stack (gzip, security headers, CSRF),
and crawler pipeline (feed parsing, mocked crawl). Stress tests verify
concurrent reads/writes and large dataset handling. Frontend perf tests
measure template generation, DOM insertion, and store event throughput.

New Makefile targets: bench, bench-short, stress, test-perf.

https://claude.ai/code/session_01ChDVWFDrQoFjMYHpaLGr9s

1 files changed, 13 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 3e0e7bb..2356f07 100644
--- a/Makefile
+++ b/Makefile
@@ -9,7 +9,7 @@ VERSION=0.3
 BUILD=`git rev-parse HEAD`
 LDFLAGS=-ldflags "-X main.Version=${VERSION} -X main.Build=${BUILD}"
 
-.PHONY: default all clean ui build install test test-race test-frontend test-e2e ui-check lint check ci run dev docs install-hooks cover coverage-html
+.PHONY: default all clean ui build install test test-race test-frontend test-e2e ui-check lint check ci run dev docs install-hooks cover coverage-html bench bench-short stress test-perf
 
 default: build
 
@@ -80,6 +80,18 @@ install-hooks:
 	chmod +x scripts/install-hooks.sh
 	./scripts/install-hooks.sh
 
+bench:
+	${GO} test -bench=. -benchmem -count=3 -run=^$$ ./...
+
+bench-short:
+	${GO} test -bench=. -benchmem -count=1 -run=^$$ ./...
+
+stress:
+	${GO} test -run=TestStress -count=1 -timeout=120s ./...
+
+test-perf:
+	cd frontend-vanilla && ${NPM} test -- --run src/perf/
+
 docs: readme.html
 
 readme.html: README.md