refactor: fix biome linting issues and update project documentation

- Fix 36+ biome linting issues reducing errors/warnings from 227 to 191
- Replace explicit 'any' types with proper TypeScript interfaces
- Fix React hooks dependencies and useCallback patterns
- Resolve unused variables and parameter assignment issues
- Improve accessibility with proper label associations
- Add comprehensive API documentation for admin and security features
- Update README.md with accurate PostgreSQL setup and current tech stack
- Create complete documentation for audit logging, CSP monitoring, and batch processing
- Fix outdated project information and missing developer workflows

package.json

@@ -31,6 +31,9 @@
     "test:vitest:coverage": "vitest run --coverage",
     "test:security-headers": "pnpm exec tsx scripts/test-security-headers.ts",
     "test:security": "pnpm test:vitest tests/unit/http-security-headers.test.ts tests/integration/security-headers-basic.test.ts tests/unit/security.test.ts",
+    "test:csp": "pnpm exec tsx scripts/test-csp.ts",
+    "test:csp:validate": "pnpm exec tsx scripts/validate-csp-implementation.ts",
+    "test:csp:full": "pnpm test:csp && pnpm test:csp:validate && pnpm test:vitest tests/unit/enhanced-csp.test.ts tests/integration/csp-middleware.test.ts tests/integration/csp-report-endpoint.test.ts",
     "lint:md": "markdownlint-cli2 \"**/*.md\" \"!.trunk/**\" \"!.venv/**\" \"!node_modules/**\"",
     "lint:md:fix": "markdownlint-cli2  --fix \"**/*.md\" \"!.trunk/**\" \"!.venv/**\" \"!node_modules/**\"",
     "migration:backup": "pnpm exec tsx scripts/migration/backup-database.ts full",