Expanded SDK to cover many new API endpoints

[burgaard]

No description provided.

[Copilot]

Pull request overview

This PR expands the public Go SDK surface to provide broader endpoint coverage, improved streaming support, and more ergonomic typed models, along with documentation and test updates to match the new API.

Changes:

• Added many new typed model aliases in types.go to avoid importing the generated package directly.
• Expanded Client with convenience methods across Agents, Evaluations, KBs, Memory Banks, Sources/Exports, Content, Solutions, Governance, Alerts/Models, Search, and top-level AI assistant endpoints.
• Improved tooling/tests: specfix now normalizes OpenAPI 3.1 exclusive bounds, and client_typed_test.go adds extensive endpoint/streaming coverage; docs updated accordingly.

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
types.go	Adds a large set of public type aliases for generated OpenAPI models.
errors.go	Adds inline field docs and introduces StreamingError for SSE failures.
doc.go	Expands package-level docs: auth, usage examples, and typed error overview.
cmd/specfix/main.go	Adds transformation of numeric exclusive bounds (3.1) to 3.0-compatible boolean form.
cmd/specfix/main_test.go	Adds tests validating the exclusive bound transformations.
client.go	Major expansion of typed convenience methods, default headers support, uploads refactor, polling helper, and channel-based streaming.
client_typed_test.go	Updates existing tests and adds many new endpoint/streaming/polling/header tests.
README.md	Rewrites/expands documentation and examples to reflect new API surface.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.