feat(framework): P6 docs + compliance matrix + resident-budget CI (#606)

R9 + R10 of the Constitution alpha (in-repo deliverables):

- framework/CONTRIBUTING.md: layer model, operator-hygiene/PII prohibition,
  dedup rule, resident budget, dual-installer parity rule, adding-a-harness,
  re-contamination rule, harness x gate compliance matrix (hook-parity gap
  marked as tracked-v2), known-limitations (DESIGN §9 residuals), PR checklist.
- check-resident-budget.sh: line-count ceiling over framework-owned resident
  files (CONSTITUTION + AGENTS + each runtime/*/RUNTIME.md), with --self-test;
  replaces the crude inline ci.yml loop. Wired blocking in .woodpecker/ci.yml.

Composer unit test (R9) already runs via pnpm test; verify-sanitized.sh (P1)
already wired. Sanitization + budget + prettier all green.

Remaining for the mission close: aiguide reconcile (separate repo) + the alpha
tag (Lead cuts after full DoD §8 green + all phases merged; P5 #605 pending).

Refs #606, #542

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EsgTQzV5YUGk1JtCLP4B83

.woodpecker/ci.yml

@@ -25,12 +25,10 @@ steps:
     commands:
       - apk add --no-cache bash
       - bash packages/mosaic/framework/tools/quality/scripts/verify-sanitized.sh
-      # L0 resident-token budget: keep the Constitution + dispatcher small.
-      - |
-        for f in CONSTITUTION.md AGENTS.md; do
-          n=$(wc -l < "packages/mosaic/framework/defaults/$f")
-          if [ "$n" -gt 120 ]; then echo "L0 budget exceeded: defaults/$f is $n lines (max 120)"; exit 1; fi
-        done
+      # Resident line-count ceiling over framework-owned resident files
+      # (Constitution + dispatcher + each RUNTIME.md slice). See DESIGN §7 / R9.
+      - bash packages/mosaic/framework/tools/quality/scripts/check-resident-budget.sh --self-test
+      - bash packages/mosaic/framework/tools/quality/scripts/check-resident-budget.sh
 
   typecheck:
     image: *node_image