Add Biome formatter/linter and restore CI workflow (#6)

- Install Biome as the project formatter and linter
- Configure Biome with recommended settings
- Add format, lint, and check scripts to package.json
- Restore CI workflow from git history (commit 0a543e1)
- Extend CI with new Biome job for format and lint checks
- Apply Biome formatting to all TypeScript files
- Fix linting issues (use node: protocol, template literals, forEach pattern)

CI now runs on:
- All pushes to main branch
- All pull requests

Co-authored-by: Claude Sonnet 4.5 <noreply@anthropic.com>

packages/postgres-best-practices-build/tsconfig.json

@@ -1,16 +1,16 @@
 {
-  "compilerOptions": {
-    "target": "ES2022",
-    "module": "ESNext",
-    "moduleResolution": "bundler",
-    "esModuleInterop": true,
-    "strict": true,
-    "skipLibCheck": true,
-    "outDir": "dist",
-    "rootDir": "src",
-    "declaration": true,
-    "resolveJsonModule": true
-  },
-  "include": ["src/**/*"],
-  "exclude": ["node_modules", "dist"]
+	"compilerOptions": {
+		"target": "ES2022",
+		"module": "ESNext",
+		"moduleResolution": "bundler",
+		"esModuleInterop": true,
+		"strict": true,
+		"skipLibCheck": true,
+		"outDir": "dist",
+		"rootDir": "src",
+		"declaration": true,
+		"resolveJsonModule": true
+	},
+	"include": ["src/**/*"],
+	"exclude": ["node_modules", "dist"]
 }