fix: update entrypoint.sh to use uv run for Django commands

Updates entrypoint.sh to use uv run for all Django management commands to ensure dependencies are available in the uv-managed virtual environment, fixing Django import errors in production.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: heysamtexas

entrypoint.sh

@@ -4,7 +4,7 @@ set -e
 
 cmd="$@"
 
-./manage.py collectstatic --noinput
-./manage.py migrate
+uv run ./manage.py collectstatic --noinput
+uv run ./manage.py migrate
 
-exec $cmd
+exec uv run $cmd