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- Fix outdated project information and missing developer workflows

tests/integration/csrf-protection.test.ts

@@ -7,7 +7,10 @@
 import { describe, it, expect, beforeEach } from "vitest";
 import { createMocks } from "node-mocks-http";
 import type { NextRequest } from "next/server";
-import { csrfProtectionMiddleware, csrfTokenMiddleware } from "../../middleware/csrfProtection";
+import {
+  csrfProtectionMiddleware,
+  csrfTokenMiddleware,
+} from "../../middleware/csrfProtection";
 import { generateCSRFToken } from "../../lib/csrf";
 
 describe("CSRF Protection Integration", () => {
@@ -250,4 +253,4 @@ describe("CSRF Protection Integration", () => {
       expect(response.status).toBe(403);
     });
   });
-});
+});