feat: Auto-generate agent/client methods based on the schema

[frostming]

Summary

Related issues

Testing

Docs & screenshots

Checklist

• Conventional Commit title (e.g. feat:, fix:).
• Tests cover the change or are not required (explain above).
• Docs/examples updated when behaviour is user-facing.
• Schema regenerations (make gen-all) are called out if applicable.

[PsiACE]

We still depend on the post-generation overrides in scripts/gen_schema.py: without them, datamodel-code-generator produces plain str fields (e.g. PromptResponse.stop_reason) and dict defaults (e.g. AgentCapabilities.mcp_capabilities). The current warnings (“failed to override default…”) happen because --snake-case-field renamed the generated attributes (stop_reason, mcp_capabilities, etc.), while the override lists still use camelCase. Before we carry these fixes forward, could you confirm whether you still expect these override steps to remain, or if you have a better approach in mind?

[frostming]

Thanks, overrides config is fixed

[PsiACE]

👍 💯 🥇 ❤️