feat: Enterprise DSS architecture implementation

Complete implementation of enterprise design system validation:

Phase 1 - @dss/rules npm package:
- CLI with validate and init commands
- 16 rules across 5 categories (colors, spacing, typography, components, a11y)
- dss-ignore support (inline and next-line)
- Break-glass [dss-skip] for emergency merges
- CI workflow templates (Gitea, GitHub, GitLab)

Phase 2 - Metrics dashboard:
- FastAPI metrics API with SQLite storage
- Portfolio-wide metrics aggregation
- Project drill-down with file:line:column violations
- Trend charts and history tracking

Phase 3 - Local analysis cache:
- LocalAnalysisCache for offline-capable validation
- Mode detection (LOCAL/REMOTE/CI)
- Stale cache warnings with recommendations

Phase 4 - Project onboarding:
- dss-init command for project setup
- Creates ds.config.json, .dss/ folder structure
- Updates .gitignore and package.json scripts
- Optional CI workflow setup

Architecture decisions:
- No commit-back: CI uploads to dashboard, not git
- Three-tier: Dashboard (read-only) → CI (authoritative) → Local (advisory)
- Pull-based rules via npm for version control

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

packages/dss-rules/package.json

@@ -1,17 +1,23 @@
 {
   "name": "@dss/rules",
   "version": "1.0.0",
-  "description": "DSS Design System Rules - Versioned rule definitions for enterprise design system enforcement",
+  "description": "DSS Design System Rules - Versioned rule definitions for enterprise enforcement",
   "main": "lib/index.js",
   "types": "lib/index.d.ts",
+  "bin": {
+    "dss-rules": "bin/cli.js",
+    "dss-init": "bin/init.js"
+  },
   "files": [
     "lib",
+    "bin",
     "rules",
-    "schemas"
+    "schemas",
+    "templates"
   ],
   "scripts": {
     "build": "tsc",
-    "test": "node lib/validate.js --self-test",
+    "test": "node bin/cli.js --self-test",
     "prepublishOnly": "npm run build && npm test"
   },
   "keywords": [
@@ -19,16 +25,14 @@
     "dss",
     "rules",
     "tokens",
-    "enterprise"
+    "enterprise",
+    "linting"
   ],
   "author": "DSS Team",
   "license": "MIT",
   "devDependencies": {
     "typescript": "^5.0.0"
   },
-  "peerDependencies": {
-    "ajv": "^8.0.0"
-  },
   "engines": {
     "node": ">=18.0.0"
   },