Fix configuration loading order to ensure environment variables have
highest precedence over config files. Also update env prefix from
CODE_ to OWLEN_ for consistency with project naming.
Changes:
- Move env variable merge to end of chain for proper precedence
- Update environment prefix from CODE_ to OWLEN_
- Add precedence tests to verify correct override behavior
- Clean up unused dependencies (serde_json, toml)
- Add tempfile dev dependency for testing
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Set up Cargo workspace with initial crates:
- cli: main application entry point with chat streaming tests
- config: configuration management
- llm/ollama: Ollama client integration with NDJSON support
Includes .gitignore for Rust and JetBrains IDEs.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>