Fix Docker deployment by resolving module resolution errors

Update build process and imports to ensure Node.js ESM compatibility for Docker deployments, addressing ERR_MODULE_NOT_FOUND errors by separating server compilation and adding .js extensions to all relative imports.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: ceced2fc-aa46-458d-ba87-ddd4b7bb1518
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/659922a9-0087-461c-90dd-6d9a58b81d4d/ceced2fc-aa46-458d-ba87-ddd4b7bb1518/SBF5OKZ

server/db.ts

@@ -1,7 +1,7 @@
 import { drizzle } from 'drizzle-orm/node-postgres';
 import { Pool } from 'pg';
 import { migrate } from 'drizzle-orm/node-postgres/migrator';
-import * as schema from '@shared/schema';
+import * as schema from '../shared/schema.js';
 import { sql } from 'drizzle-orm';
 
 let db: ReturnType<typeof drizzle> | null = null;