ENTERPRISE: Implement zero-config SSL/TLS with dual HTTP/HTTPS architecture

Major architectural improvements:
- Auto-generate SSL certificates on first startup with OpenSSL
- Dual HTTP (8081) + HTTPS (8443) backend API servers
- Frontend auto-detects protocol and uses appropriate API endpoint
- Fix database ORM initialization race condition with getDb() pattern
- WebSocket authentication with JWT verification during handshake
- Zero-config .env file generation for production deployment
- Docker and nginx configurations for container deployment

Technical fixes:
- Eliminate module initialization race conditions in database access
- Replace direct db imports with safer getDb() function calls
- Automatic HTTPS frontend development server (npm run dev:https)
- SSL certificate generation with termix.crt/termix.key
- Cross-platform environment variable support with cross-env

This enables seamless HTTP→HTTPS upgrade with zero manual configuration.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/backend/ssh/terminal.ts

@@ -1,7 +1,7 @@
 import { WebSocketServer, WebSocket, type RawData } from "ws";
 import { Client, type ClientChannel, type PseudoTtyOptions } from "ssh2";
 import { parse as parseUrl } from "url";
-import { db } from "../database/db/index.js";
+import { getDb } from "../database/db/index.js";
 import { sshCredentials } from "../database/db/schema.js";
 import { eq, and } from "drizzle-orm";
 import { sshLogger } from "../utils/logger.js";
@@ -368,7 +368,7 @@ wss.on("connection", (ws: WebSocket, req) => {
     if (credentialId && id && hostConfig.userId) {
       try {
         const credentials = await SimpleDBOps.select(
-          db
+          getDb()
             .select()
             .from(sshCredentials)
             .where(