Add proper email notifications

.dockerignore

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+# Keep the image lean and reproducible: don't ship anything we'd regenerate
+# inside the container anyway, and never ship host-only / secret state.
+
+# Host venv -- container has its own Python install.
+.venv/
+
+# VCS metadata.
+.git/
+.gitignore
+.gitattributes
+
+# Local databases / dev artefacts.
+*.sqlite3
+db.sqlite3*
+__pycache__/
+*.py[cod]
+*.swp
+*.log
+*.tmp
+
+# Secrets / env files: container reads .env via --env-file or compose env_file:.
+.env
+.env.local
+
+# Tailwind binary cache: re-downloaded by `manage.py tailwind build` during
+# image build, then removed in the same layer. Host copy might be a different
+# arch / version, so always skip it.
+.django_tailwind_cli/
+
+# Output of `collectstatic` -- the Containerfile runs this fresh at build time.
+staticfiles/
+
+# Documentation, design assets, and prototype HTML that operators don't need
+# at runtime.
+demo/
+plan.md
+plan.pdf
+plan.html
+CLAUDE.md
+CONTRIBUTING.md
+README.md
+.claude/
+
+# IDE / cache directories.
+.vscode/
+.idea/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+node_modules/