fix(build): commit ui/dist/ so go install ships a working web UI

.gitignore

@@ -24,14 +24,18 @@ go.work.sum
 *.sqlite-wal
 
 # Frontend — build artifacts
-# `ui/dist/` is generated by `npm run build` and never committed. We DO
-# commit `ui/dist/index.html` — a placeholder the Go `//go:embed ui/dist`
-# directive needs at compile time. CI builds the UI before every Go step
-# so the embedded assets are always fresh.
+# `ui/dist/` IS committed in full so that `go install
+# github.com/RandomCodeSpace/docsiq@vX.Y.Z` produces a working binary
+# with the embedded SPA. The Go `//go:embed ui/dist` directive needs the
+# real built assets present in the source tree at compile time; without
+# them the binary serves a placeholder index.html and 404s on every
+# /assets/* request. Re-build with `npm run build` and commit the
+# resulting `ui/dist/` before tagging a release. CI also runs
+# `npm run build` before `go build` so release binaries are always fresh.
+# Other top-level dist/ build artefacts stay ignored.
 dist/
 !ui/dist/
-ui/dist/*
-!ui/dist/index.html
+!ui/dist/**
 
 # Frontend — tooling caches
 ui/node_modules/