fix(docker): handle missing package-lock.json in npm build | ApprovalToken: 1767139849

- Add conditional check for .web directory and package.json
- Fallback to npm install if package-lock.json doesn't exist
- Skip npm build gracefully if directory doesn't exist
- Fixes npm ci error when reflex export doesn't create lock file

docker/Dockerfile

@@ -54,18 +54,24 @@ RUN reflex init --loglevel debug || true && \
     reflex export --frontend-only --no-zip --loglevel debug || echo "Export completed with warnings"
 
 # Build frontend with npm (fallback if reflex export fails)
-WORKDIR /build/.web
-
-# Configure npm for better reliability
-RUN npm config set fetch-retry-mintimeout 20000 && \
-    npm config set fetch-retry-maxtimeout 120000 && \
-    npm config set fetch-retries 5 && \
-    npm config set fetch-timeout 300000
-
-# Install and build
-RUN --mount=type=cache,target=/root/.npm \
-    npm ci --prefer-offline --no-audit --loglevel verbose && \
-    npm run build
+# Check if .web directory exists and has package.json
+RUN if [ -d "/build/.web" ] && [ -f "/build/.web/package.json" ]; then \
+        echo "Found .web directory with package.json, building frontend..." && \
+        cd /build/.web && \
+        npm config set fetch-retry-mintimeout 20000 && \
+        npm config set fetch-retry-maxtimeout 120000 && \
+        npm config set fetch-retries 5 && \
+        npm config set fetch-timeout 300000 && \
+        if [ -f "package-lock.json" ]; then \
+            npm ci --prefer-offline --no-audit --loglevel verbose; \
+        else \
+            echo "package-lock.json not found, using npm install..." && \
+            npm install --prefer-offline --no-audit --loglevel verbose; \
+        fi && \
+        npm run build; \
+    else \
+        echo "Warning: .web directory or package.json not found, skipping npm build"; \
+    fi
 
 # ============================================
 # Stage 2: Runtime (using base image for Node.js)