Initial setup: PostgreSQL best practices repository

Skeleton structure for Supabase PostgreSQL experts to add performance
optimization rules. Modeled after Vercel's react-best-practices-build.

Includes:
- Build system (parser, validator, builder)
- Skill manifest and metadata
- Rule templates and writing guidelines
- CI workflow for validation
- Getting started guide for Postgres team

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/postgresql-best-practices-build/package.json

@@ -0,0 +1,18 @@
+{
+  "name": "postgresql-best-practices-build",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "build": "tsx src/build.ts",
+    "build-agents": "tsx src/build.ts --agents-only",
+    "validate": "tsx src/validate.ts",
+    "extract-tests": "tsx src/extract-tests.ts",
+    "dev": "npm run validate && npm run build"
+  },
+  "devDependencies": {
+    "@types/node": "^20.10.0",
+    "tsx": "^4.7.0",
+    "typescript": "^5.3.0"
+  }
+}