- Update default summarize model to `claude-sonnet-4-5`
- Replace `gpt-4o` references with `gpt-5.2` throughout docs
- Replace `gpt-4o-mini` references with `gpt-5-mini`
- Add MiniMax-M2.5 and M2.5-lightning to static models list
- Update image generation warning to suggest `gpt-5.2`
- Update OpenAI chat example script to use `gpt-5-mini`
- Update REST API docs and examples with current model names
### CHANGES
- Introduce `cmd` directory for all main application binaries.
- Move all Go packages into the `internal` directory.
- Rename the `restapi` package to `server` for clarity.
- Consolidate patterns and strategies into a new `data` directory.
- Group all auxiliary scripts into a new `scripts` directory.
- Move all documentation and images into a `docs` directory.
- Update all Go import paths to reflect the new structure.
- Adjust CI/CD workflows and build commands for new layout.
