Split frontend copy to identify LFS file issue

Copy non-LFS files first, then LFS files (WASM, ONNX) separately
to identify exactly which copy fails.

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

Dockerfile

@@ -2,18 +2,17 @@ FROM node:20-slim
 
 ENV DEBIAN_FRONTEND=noninteractive
 
-# Build timestamp: 2026-01-13T00:20
+# Build timestamp: 2026-01-13T00:25
 
 WORKDIR /app
 
 # Install esbuild globally
 RUN npm install -g esbuild
 
-# Copy only the backend package.json and install backend deps at root level
-# This avoids the nested npm install issue
+# Copy backend package.json and install deps at root level
 COPY trigo-web/backend/package.json ./package.json
 RUN npm install --omit=dev
-RUN echo "Step 1: Dependencies installed" && ls -la node_modules/ | head -10
+RUN echo "Step 1: Dependencies installed"
 
 # Copy backend source
 RUN mkdir -p backend
@@ -27,18 +26,36 @@ RUN mkdir -p backend/dist/backend/src && \
     --external:express --external:socket.io --external:cors --external:dotenv --external:uuid
 RUN echo "Step 3: Backend built"
 
-# Copy pre-built frontend
-RUN mkdir -p app
-COPY trigo-web/app/dist/ ./app/dist/
-RUN echo "Step 4: Frontend copied" && ls -la app/dist/
+# Copy frontend dist - test with explicit file listing
+# First create directories
+RUN mkdir -p app/dist/assets app/dist/lib
 
-# Copy public and other files
+# Copy non-LFS files first (JS, CSS, HTML)
+COPY trigo-web/app/dist/index.html ./app/dist/
+COPY trigo-web/app/dist/assets/*.js ./app/dist/assets/
+COPY trigo-web/app/dist/assets/*.css ./app/dist/assets/
+COPY trigo-web/app/dist/assets/*.png ./app/dist/assets/
+COPY trigo-web/app/dist/lib/ ./app/dist/lib/
+RUN echo "Step 4a: Non-LFS frontend files copied"
+
+# Try to copy LFS files (WASM) - this might fail
+COPY trigo-web/app/dist/assets/*.wasm ./app/dist/assets/
+RUN echo "Step 4b: WASM file copied"
+
+# Copy ONNX directories (LFS)
+COPY trigo-web/app/dist/onnx/ ./app/dist/onnx/
+RUN echo "Step 4c: ONNX files copied"
+
+# Check what we have
+RUN echo "Step 5: Checking dist contents" && ls -la app/dist/ && ls -la app/dist/assets/ | head -5
+
+# Copy other files
 COPY trigo-web/public/ ./public/
 COPY trigo-web/.env ./.env
 COPY trigo-web/backend/.env ./backend/.env
 COPY trigo-web/backend/.env.local ./backend/.env.local
 COPY trigo-web/inc/ ./inc/
-RUN echo "Step 5: All files copied"
+RUN echo "Step 6: All files copied"
 
 ENV PORT=7860
 ENV HOST=0.0.0.0