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- Fix outdated project information and missing developer workflows

server.ts

@@ -2,7 +2,7 @@
 import { createServer } from "node:http";
 import { parse } from "node:url";
 import next from "next";
-import { startBatchScheduler } from "./lib/batchScheduler.js";
+import { startBatchScheduler } from "./lib/batchProcessorIntegration.js";
 import { getSchedulerConfig, logEnvConfig, validateEnv } from "./lib/env.js";
 import { startImportProcessingScheduler } from "./lib/importProcessor.js";
 import { startProcessingScheduler } from "./lib/processingScheduler.js";