URGENT: Force HF to build from latest commit - v0.3.20

- Created multiple sync verification markers
- HF MUST build f521361 (Gradio fix) not ab0f9ea
- Added HF_SYNC_CHECK.md as distinctive marker file
- Updated FORCE_UPDATE.txt with critical build info
- Version 0.3.20 with precise timestamp for tracking

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

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

FORCE_UPDATE.txt

@@ -1,6 +1,9 @@
-Force update file created at 2025-08-19 15:18:00
-This file exists only to force HuggingFace to recognize new commits.
-Current expected SHA: 34c994a
-If you see this file in HF Spaces, the git sync is working.
-VERSION CHECK: v0.3.17 - If HF shows this version, sync is working!
-Delete this file once sync is confirmed.
+URGENT SYNC CHECK - 2025-08-19 15:27:00
+HF MUST BUILD FROM COMMIT: f521361 (v0.3.19)
+NOT FROM: ab0f9ea (v0.3.18) 
+
+CRITICAL FIX NEEDED: Gradio Audio 'source' parameter removal
+Without commit f521361, app will crash with TypeError
+
+Factory rebuild timestamp: 2025-08-19 15:27:00
+This file should ONLY exist in commit f521361 or later

HF_SYNC_CHECK.md

@@ -0,0 +1,16 @@
+# HF Spaces Sync Verification
+
+**CRITICAL**: If you see this file in HF Spaces interface, the sync is working!
+
+## Current Build Status
+- **Target Commit**: f521361 + this commit  
+- **Target Version**: v0.3.20
+- **Must Have**: Gradio Audio fix (no 'source' parameter)
+- **Timestamp**: 2025-08-19T15:27:00
+
+## What Should Happen
+1. HF builds from latest commit (not ab0f9ea)
+2. App starts without Gradio Audio TypeError
+3. Version endpoint shows v0.3.20
+
+**DELETE THIS FILE** once HF sync is confirmed working.

version.py

@@ -2,8 +2,8 @@
 Version information for ChatCal Voice-Enabled AI Assistant
 """
 
-__version__ = "0.3.19"
-__build_date__ = "2025-08-19T15:18:00"
+__version__ = "0.3.20"
+__build_date__ = "2025-08-19T15:27:00"
 __description__ = "Voice-Enabled ChatCal AI Assistant with Hugging Face deployment"
 
 def get_version_info():