adr-checklisted

# adr-check Validates ADRs against `references/adr-check-contract.md`. Modes: **Global** (all ADR dirs + diff warnings), **Scoped** (file/dir/query — no diff noise), **Diff** (changed ADRs on branch). Outputs structured pass/fail report. --- ## Step 1 — Determine mode and discover inputs 1. Inspect skill arg: - **No arg** → `mode = global`. Run dir discovery (steps 2–6). - **Arg = `.md` file** → `mode = scoped_file`, `target = <path>`. Skip dir discovery. Checks 2.2, 2.3, Step 4 skipped. - **Arg = directory** → `mode = scoped_dir`, `target = <directory>`. Skip CLAUDE.md discovery. Use `target` as sole `adr_dirs` entry. Run Checks 2.1, 2.1e, 2.2, 2.3. Skip Step 4. - **Any other non-empty arg** → `mode = scoped_query`, `query = <arg>`. Run dir discovery. Match ADR files via model judgment. Run Checks 2.1 and 2.1e only. Skip 2.2, 2.3, Step 4. No matches → emit advisory warning, exit PASS. 2. *(global/scoped_query)* Read project `CLAUDE.md`. 3. *(global/scoped_query)* Search for heading containing `ADR Locations` (case-insensitive). 4. *(global/scoped_query)* If found, collect bullet items as relative paths, strip inline `# comments`. Store as `adr_dirs`. 5. *(global/scoped_query)* If not found, fall back: scan repo root for `docs/adrs/`, `decisions/`, `architecture/decisions/`. 6. *(global only)* `adr_dirs` empty → output report `Mode: Global`, emit `WARNING: No ADR directories found. Skipping validation.`, set `Overall: PASS`, stop. ## Step 2 — Validate each d