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/src/config.ts

@@ -0,0 +1,42 @@
+import { fileURLToPath } from "url";
+import { dirname, join } from "path";
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+
+// Build package directory
+export const BUILD_DIR = join(__dirname, "..");
+
+// Skill directory (relative to build package)
+export const SKILL_DIR = join(BUILD_DIR, "../../skills/postgresql-best-practices");
+
+// Rules directory
+export const RULES_DIR = join(SKILL_DIR, "rules");
+
+// Output files
+export const AGENTS_OUTPUT = join(SKILL_DIR, "AGENTS.md");
+export const METADATA_FILE = join(SKILL_DIR, "metadata.json");
+export const TEST_CASES_OUTPUT = join(BUILD_DIR, "test-cases.json");
+
+// Section prefix to number mapping
+export const SECTION_MAP: Record<string, number> = {
+  query: 1,
+  conn: 2,
+  connection: 2,
+  schema: 3,
+  lock: 4,
+  security: 5,
+  data: 6,
+  monitor: 7,
+  advanced: 8,
+};
+
+// Valid impact levels in priority order
+export const IMPACT_LEVELS = [
+  "CRITICAL",
+  "HIGH",
+  "MEDIUM-HIGH",
+  "MEDIUM",
+  "LOW-MEDIUM",
+  "LOW",
+] as const;