feat: add CI/CD pipeline and bump version to 1.0.0

- Add Dockerfile for containerized deployment (Python 3.12-slim, port 8000)
- Add Gitea Actions workflow triggered on release publish
- Builds and pushes to git.schweitz.net registry with latest and version tags
- Bump version to 1.0.0 marking production-ready release
- Update CHANGELOG with CI/CD and deployment configuration

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "tatlock"
-version = "0.2.5"
+version = "1.0.0"
 description = "OpenAI-compatible API with Ollama backend"
 requires-python = ">=3.12"
 dependencies = []