Bump version to 2.1.0 — test CI/CD auto-deploy

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: Sbussiso

backend/app/main.py

@@ -91,4 +91,4 @@ async def spa_middleware(request: Request, call_next):
 
 @app.get("/api/health")
 async def health_check():
-    return {"status": "healthy", "version": "2.0.0"}
+    return {"status": "healthy", "version": "2.1.0"}