Add Docker cache-busting to resolve container-level caching

- Add CACHEBUST build arg to Dockerfile to invalidate Docker layers
- Copy static files separately before full app copy to break cache
- Add build time logging to app.py for cache debugging
- Add timestamp file to force Docker rebuild
- This should resolve Docker container caching the old green UI files

Dockerfile

@@ -19,12 +19,17 @@ WORKDIR /app
 COPY --chown=user ./requirements.txt requirements.txt
 RUN pip install --no-cache-dir --upgrade -r requirements.txt
 
-# Copy application files
+# Copy application files (copy static files first to break cache)
+COPY --chown=user ./static /app/static
 COPY --chown=user . /app
 
 # Create data directory
 RUN mkdir -p /app/data && chmod 700 /app/data
 
+# Add cache-busting with current timestamp
+ARG CACHEBUST=1
+RUN echo "Cache bust: $CACHEBUST" && ls -la /app/static/
+
 # Expose port 7860 as required by HF Spaces
 EXPOSE 7860
 

app.py

@@ -33,6 +33,11 @@ logging.basicConfig(
 )
 logger = logging.getLogger(__name__)
 
+# Log build info to help with cache debugging
+import os
+build_time = os.environ.get('BUILD_TIME', 'unknown')
+logger.info(f"TreeTrack starting - Build time: {build_time}")
+
 
 # Import configuration