fix: اصلاح Dockerfile و Helm برای رفع مشکل 404

- حذف reflex init که فایل‌ها را overwrite می‌کرد
- نگه داشتن .web directory برای frontend static files
- اصلاح service targetPort از hardcode به values
- افزایش readiness/liveness probe timing به 120 ثانیه
- اصلاح export برای production mode

Dockerfile

@@ -51,11 +51,12 @@ RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
 # Copy application code (excluding .dockerignore items)
 COPY --chown=root:root . .
 
-# Initialize and build Reflex app
-RUN python -m reflex init --template blank && \
-    python -m reflex export --frontend-only --no-zip || true
+# Build and export Reflex app for production
+# Export creates .web directory with frontend static files
+RUN python -m reflex export --no-zip
 
 # Aggressive cleanup to reduce layer size
+# NOTE: Keep .web directory - it contains frontend static files needed for --backend-only mode
 RUN set -ex && \
     # Remove Python cache
     find /build -type d -name "__pycache__" -exec rm -rf {} + 2>/dev/null || true && \
@@ -65,8 +66,8 @@ RUN set -ex && \
     rm -rf /build/tests /build/docs /build/scripts && \
     rm -rf /build/.git /build/.github /build/.vscode && \
     rm -rf /build/venv /build/env && \
-    # Remove build artifacts that were created
-    rm -rf /build/.web /build/node_modules && \
+    # Remove node_modules but KEEP .web (frontend static files)
+    rm -rf /build/node_modules && \
     # Remove large duplicate assets from root
     rm -f /build/*.gif /build/*.mp4 /build/*.mov 2>/dev/null || true && \
     # Keep only necessary configs