feat: Add version tracking and /version API endpoint v0.3.7

- Add version.py with semantic versioning (v0.3.7)
- Implement /version RESTful API endpoint in both debug_app.py and app.py
- Mount FastAPI to Gradio for custom API routes
- Update main README.md to reflect new version and features
- Enhanced debugging interface with version information display

Version API usage: GET /version returns JSON with version info
Debug interface now shows version information in UI

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

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

app.py

@@ -18,6 +18,7 @@ from core.chat_agent import ChatCalAgent
 from core.session_manager import SessionManager
 from core.audio_handler import AudioHandler
 from core.config import config
+from version import get_version_info
 
 class ChatCalVoiceApp:
     """Main application class for voice-enabled ChatCal."""
@@ -295,8 +296,23 @@ app = ChatCalVoiceApp()
 
 # Create and launch the interface
 if __name__ == "__main__":
+    from fastapi import FastAPI
+    from fastapi.responses import JSONResponse
+    
+    # Create FastAPI app for additional endpoints
+    fastapi_app = FastAPI()
+    
+    @fastapi_app.get("/version")
+    async def get_version():
+        """RESTful API endpoint for version information"""
+        return JSONResponse(content=get_version_info())
+    
+    # Create Gradio interface
     demo = app.create_interface()
     
+    # Mount FastAPI to Gradio for version endpoint
+    demo.mount_to(fastapi_app)
+    
     # Launch configuration
     demo.launch(
         server_name="0.0.0.0",

debug_app.py

@@ -7,6 +7,8 @@ import gradio as gr
 import sys
 import traceback
 import os
+import json
+from version import get_version_info
 
 def test_imports():
     """Test all imports to identify which one is failing"""
@@ -67,9 +69,20 @@ try:
     print("=== IMPORT TEST RESULTS ===")
     print(import_results)
     
+    # Add version endpoint function
+    def version_endpoint():
+        """Return version information as JSON"""
+        return json.dumps(get_version_info(), indent=2)
+    
     # Create simple Gradio interface
     with gr.Blocks(title="ChatCal Debug") as demo:
         gr.Markdown("# 🔧 ChatCal Debug Interface")
+        
+        gr.Markdown("## Version Information:")
+        version_btn = gr.Button("Get Version Info")
+        version_output = gr.Textbox(label="Version", interactive=False)
+        version_btn.click(version_endpoint, outputs=version_output)
+        
         gr.Markdown("## Import Test Results:")
         gr.Textbox(value=import_results, lines=15, label="Import Status", interactive=False)
         
@@ -78,6 +91,21 @@ try:
         output = gr.Textbox(label="Output")
         test_btn.click(simple_interface, outputs=output)
     
+    # Add custom API route for version endpoint
+    from fastapi import FastAPI
+    from fastapi.responses import JSONResponse
+    
+    # Create FastAPI app
+    fastapi_app = FastAPI()
+    
+    @fastapi_app.get("/version")
+    async def get_version():
+        """RESTful API endpoint for version information"""
+        return JSONResponse(content=get_version_info())
+    
+    # Mount FastAPI to Gradio
+    demo.mount_to(fastapi_app)
+    
     # Launch with error handling
     demo.launch(
         server_name="0.0.0.0",

version.py

@@ -0,0 +1,16 @@
+"""
+Version information for ChatCal Voice-Enabled AI Assistant
+"""
+
+__version__ = "0.3.7"
+__build_date__ = "2025-08-18"
+__description__ = "Voice-Enabled ChatCal AI Assistant with Hugging Face deployment"
+
+def get_version_info():
+    """Get detailed version information"""
+    return {
+        "version": __version__,
+        "build_date": __build_date__,
+        "description": __description__,
+        "status": "running"
+    }