Fix Cloudflare Worker compatibility for version endpoint

- Add version parameter to AppConfig interface
- Pass version from environment config instead of using process.env
- Update worker.ts to pass VERSION environment variable
- Update wrangler.toml with VERSION variable
- Update deploy script to automatically set VERSION to git commit hash

This fixes the 'process is not defined' error in Cloudflare Workers

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

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

src/app.ts

@@ -6,6 +6,7 @@ import type { Context } from 'hono';
 export interface AppConfig {
   sessionTimeout: number;
   corsOrigins: string[];
+  version?: string;
 }
 
 /**
@@ -54,7 +55,7 @@ export function createApp(storage: Storage, config: AppConfig) {
    */
   app.get('/', (c) => {
     return c.json({
-      version: process.env.RONDEVU_VERSION || 'unknown'
+      version: config.version || 'unknown'
     });
   });