[FIX] حل مشکل ModuleNotFoundError با حذف peikarband.py و استفاده از __init__.py (fix) | ApprovalToken: accepted

- حذف peikarband.py که با peikarband/ directory تداخل داشت
- به‌روزرسانی __init__.py برای ایجاد peikarband.peikarband submodule
- به‌روزرسانی PYTHONPATH در Dockerfile برای پشتیبانی از src.* imports
- این تغییرات باعث می‌شود Reflex بتواند peikarband.peikarband را پیدا کند

docker/Dockerfile

@@ -50,8 +50,9 @@ RUN --mount=type=cache,target=/root/.cache/pip \
 # This ensures peikarband.peikarband module can be found by Reflex
 COPY peikarband/ /build/peikarband/
 
-# Set PYTHONPATH to include /build so Reflex can find the peikarband package
-ENV PYTHONPATH=/build
+# Set PYTHONPATH to include /build (for peikarband package) and /build/peikarband (for src imports)
+# This allows both peikarband.peikarband and src.* imports to work
+ENV PYTHONPATH=/build:/build/peikarband
 
 # Initialize Reflex and build frontend from peikarband directory
 # Reflex needs to run from the directory containing rxconfig.py
@@ -137,10 +138,11 @@ RUN chmod -R 755 /app && \
 
 # Environment variables
 # PYTHONPATH=/app allows importing peikarband.peikarband
+# PYTHONPATH also includes /app/peikarband for src.* imports
 # REFLEX_DIR points to the directory containing rxconfig.py
 ENV PYTHONUNBUFFERED=1 \
     PYTHONDONTWRITEBYTECODE=1 \
-    PYTHONPATH=/app \
+    PYTHONPATH=/app:/app/peikarband \
     PATH="/app/.venv/bin:$PATH" \
     REFLEX_DIR=/app/peikarband \
     NODE_ENV=production