STRICT ALLOWLIST policy: Only packages explicitly listed in CONVENTIONS.md
may be imported. No exceptions.
## Changes
- Updates CONVENTIONS.md with strict allowlist language
- Adds scripts/check-deps.sh to enforce the allowlist
- Adds 'make check-deps' and 'make precommit' targets
- CI will fail if any unapproved dependency is detected
## Approved packages
- gopkg.in/yaml.v3 — YAML parsing
- github.com/google/go-cmp — test comparisons
## Process for new dependencies
1. Open a PR that ONLY updates CONVENTIONS.md
2. Requires explicit approval from Aaron
3. After merge, a separate PR may use the package
When a new push arrives while review-bot is processing, the review
would be posted against a stale commit. This causes noise in the
PR timeline with findings that reference code that no longer exists.
Before posting, re-fetch PR metadata and compare HEAD SHA with the
commit we evaluated against. If they differ, log a warning and exit
successfully — a new workflow run should already be processing the
new HEAD.
Fixes#52
Rodin
