refactor(docker): Improve Docker Compose environment variable handling

fix(db): Correct default DB_HOST in settings.py for Docker Compose

feat(docker): Add wait_for_db.py script

fix(docker): Correct manage.py path in Docker Compose command

fix(nginx): Correct Nginx Docker Compose configuration

fix(docker): Correct Dockerfile and docker-compose.yml paths

feat: Add Django management command for classifier import

feat(deps): Add openpyxl and defusedxml for Excel import

feat: Implement Market Analysis Feature

fix(deps): Upgrade asgiref to resolve Django 5.2 dependency conflict

feat(security): Upgrade Django and Pillow dependencies

fix(security): Remove |safe filter from product description in seller_product_detail.html

fix(security): Remove |safe filter from product description in product_detail.html

fix(security): Remove sensitive password logging

chore: Untrack .venv/ directory

feat: Add .gemini/ and .geminiignore to .gitignore

Reapply "feat: Improve security and clarity in settings"

Revert "feat: Improve security and clarity in settings"

feat: Improve security and clarity in settings