feat(api): add pull request and wiki API endpoints with OpenAPI generator

- Add gen_openapi binary for generating OpenAPI specification
- Implement comprehensive pull request API endpoints including core operations
- Add pull request reviews, check runs, labels, assignees, and events APIs
- Include pull request status and merge strategy management endpoints
- Add wiki page CRUD operations with revision history and comparison
- Update OpenAPI documentation with Pull Requests and Wiki tags
- Modify workspace find function visibility for external access
- Integrate new API modules into main OpenAPI router configuration

Cargo.toml

@@ -11,6 +11,10 @@ path = "lib.rs"
 [[bin]]
 name = "appks"
 path = "main.rs"
+
+[[bin]]
+name = "gen_openapi"
+path = "gen_openapi.rs"
 [dependencies]
 sqlx = { version = "0.9.0", features = ["postgres","runtime-tokio","chrono","uuid","json"] }
 tokio = { version = "1.52.3", features = ["full"] }