Add HTTP API with JSON status endpoint and typeid support

CLAUDE.md

@@ -5,5 +5,5 @@
 - Don't mention claude in commit messages. Keep them to a single, short, descriptive sentence
 - Always push after commiting
 - Use git add -A so you don't miss files when committing
-- Never use go build -- use go run instead
-- DO NOT commit unless asked to
+- Never use go build -- use go vet instead
+- DO NOT commit unless asked to