add ignore extra envs; rm chrome and celery from backend image

Dockerfile

@@ -20,10 +20,6 @@ COPY pyproject.toml uv.lock ./
 # Install Python dependencies
 RUN uv sync --frozen --no-dev
 
-# Install Playwright and Chromium for PDF generation
-RUN uv run playwright install-deps
-RUN uv run playwright install chromium
-
 # Copy application code
 COPY . .
 
@@ -55,10 +51,6 @@ fi
 echo "Running database migrations..."
 uv run alembic upgrade head
 
-# Start Celery worker in background
-echo "Starting Celery worker in background..."
-uv run celery -A celery_worker.celery_app worker --loglevel=info --pool=solo &
-
 # Start FastAPI server
 if [ "\$APP_ENV" = "development" ]; then
     echo "Starting FastAPI development server..."

app/core/config.py

@@ -47,6 +47,7 @@ class Settings(BaseSettings):
 
     class Config:
         env_file = ".env"
+        extra = "ignore"
 
 
 settings = Settings()

rag/settings.py

@@ -47,6 +47,7 @@ class RagSettings(BaseSettings):
     class Config:
         env_file = ".env"
         env_file_encoding = "utf-8"
+        extra = "ignore"
 
 
 settings = RagSettings()