Stack Evaluator

Component-level review of a project's technology stack, not its code — records the stack to docs/stack/ with the run date, checks each component for end-of-life and currency, finds architectural gaps (caching, backups, queues, rate limiting, observability), flags redundancy and over-engineering against the real workload, then emits a sequenced revision proposal and an execution brief. Re-runnable per repo with persistent decisions and finding history.