[FIX] Fix Reflex build errors and improve Docker permissions

- Add state_auto_setters=True to rxconfig.py (fixes Reflex 0.8.9+ deprecation)
- Fix node_modules/.bin permissions in Dockerfile (both files and symlinks)
- Add permission validation in entrypoint.sh
- Fix healthcheck endpoint from /_health to /ping on port 8000
- Add diagnostic commands to Dockerfile for debugging
- Improve permission handling in builder and runtime stages

Fixes permission denied error for react-router during production build

docker/Dockerfile

@@ -64,13 +64,12 @@ ENV PYTHONPATH=/build:/build/peikarband
 # Reflex needs to run from the directory containing rxconfig.py
 RUN cd /build/peikarband && \
     reflex init --loglevel debug || true && \
-    reflex export --frontend-only --no-zip --loglevel debug || echo "Export completed with warnings"
-
-# Ensure executable permissions for node_modules/.bin files in builder stage
-# This ensures they are preserved when copying to runtime stage
-RUN if [ -d /build/peikarband/.web/node_modules/.bin ]; then \
-        find /build/peikarband/.web/node_modules/.bin -type f -exec chmod +x {} \; && \
-        echo "✅ Set executable permissions for .bin files in builder"; \
+    reflex export --frontend-only --no-zip --loglevel debug && \
+    echo "Frontend export completed" && \
+    if [ -d .web/node_modules/.bin ]; then \
+        find .web/node_modules/.bin -type f -exec chmod +x {} \; && \
+        find .web/node_modules/.bin -type l -exec chmod +x {} \; && \
+        echo "✅ Set executable permissions for all .bin files (files and symlinks)"; \
     fi
 
 # Note: reflex export already builds and installs everything needed
@@ -119,8 +118,7 @@ COPY --from=builder /usr/local/bin /usr/local/bin
 
 # Copy application code to /app/peikarband/ to create peikarband.peikarband structure
 # With app_name="peikarband", Reflex expects to find peikarband.peikarband module
-# Use --chmod to preserve executable permissions for node_modules/.bin
-COPY --from=builder --chown=peikarband:peikarband --chmod=755 /build/peikarband /app/peikarband
+COPY --from=builder --chown=peikarband:peikarband /build/peikarband /app/peikarband
 
 # Copy entrypoint script
 COPY docker/entrypoint.sh /usr/local/bin/entrypoint.sh
@@ -130,10 +128,12 @@ RUN chmod +x /usr/local/bin/entrypoint.sh
 RUN mkdir -p /app/data /app/logs /app/uploaded_files
 
 # Set proper permissions for application files
-# Explicitly set executable permissions for node_modules/.bin files
+# Explicitly set executable permissions for node_modules/.bin files (both files and symlinks)
 RUN if [ -d /app/peikarband/.web/node_modules/.bin ]; then \
-        chmod +x /app/peikarband/.web/node_modules/.bin/* && \
-        echo "✅ Set executable permissions for .bin files"; \
+        find /app/peikarband/.web/node_modules/.bin -type f -exec chmod +x {} \; && \
+        find /app/peikarband/.web/node_modules/.bin -type l -exec chmod +x {} \; && \
+        ls -la /app/peikarband/.web/node_modules/.bin/ | head -20 && \
+        echo "✅ Verified executable permissions for .bin files"; \
     fi && \
     chmod -R 777 /app/data /app/logs /app/uploaded_files
 
@@ -150,9 +150,20 @@ ENV PYTHONUNBUFFERED=1 \
     REFLEX_DIR=/app/peikarband \
     NODE_ENV=production
 
-# Health check
+# Diagnostic information (before switching to non-root user)
+RUN echo "=== Diagnostic Info ===" && \
+    if [ -f /app/peikarband/.web/node_modules/.bin/react-router ]; then \
+        ls -la /app/peikarband/.web/node_modules/.bin/react-router && \
+        file /app/peikarband/.web/node_modules/.bin/react-router || true; \
+    fi && \
+    if [ -f /app/peikarband/.web/node_modules/@react-router/dev/bin.js ]; then \
+        head -5 /app/peikarband/.web/node_modules/@react-router/dev/bin.js || true; \
+    fi && \
+    echo "======================="
+
+# Health check (using backend health endpoint on port 8000)
 HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
-    CMD curl -f http://localhost:${PORT:-3000}/_health || exit 1
+    CMD curl -f http://localhost:8000/ping || exit 1
 
 # Switch to non-root user
 USER peikarband

docker/entrypoint.sh

@@ -1,6 +1,18 @@
 #!/bin/bash
 set -e
 
+# Validate node_modules permissions before starting
+if [ -d /app/peikarband/.web/node_modules/.bin ]; then
+    echo "Checking node_modules/.bin permissions..."
+    if [ ! -x /app/peikarband/.web/node_modules/.bin/react-router ]; then
+        echo "WARNING: react-router is not executable, attempting to fix..."
+        chmod +x /app/peikarband/.web/node_modules/.bin/* 2>/dev/null || true
+        echo "Permission fix attempted (may fail if running as non-root)"
+    else
+        echo "✅ react-router is executable"
+    fi
+fi
+
 # Change to the directory containing rxconfig.py
 cd /app/peikarband