[moonyue-w]

Summary

Prepare SDK 0.14.0: Thread SSE resumption for synchronous and asynchronous Forward/Managed clients, a typed Managed Thread Last-Event-ID parameter, and prompt cancellation of blocked synchronous HTTP/1.x SSE reads. Update the package/runtime version and move the completed changelog entries into 0.14.0, leaving Unreleased empty.

Why

The feature changes are merged and QA-accepted. This release PR aligns the version reported by installed packages, request headers, and Session metadata with the upcoming release.

Verification

• uv lock and uv sync --extra dev --locked (no dependency upgrades)
• uv run make lint
• uv run make typecheck
• uv run make test: 4,319 passed; 73 integration cases deselected
• uv run make docs-check
• uv run make build
• Changelog check and 0.14.0 release-note extraction
• Release automation: 25 tests passed
• Consumer smoke: 4 Forward/Managed request-header and Session-metadata checks report exactly 0.14.0

Merged source f0c6939 passed internal package validation and 112 local installed-QA-package checks, including 24 targeted CN/Global SSE checks and 14 successful cleanup operations. Those checks preceded this version-only PR.

After this PR is merged, rerun internal validation and generate versioned 0.14.0 QA artifacts from the merged main commit before release. No release workflow is triggered by this PR.

Impact

• Version metadata and release notes updated; no runtime logic or API contract changes in this PR
• Generated API documentation remains unchanged and passes the drift gate.
• Coordinated with the Go, Python, and TypeScript 0.14.0 release preparation
• Contract fixture and migration changes are not applicable to this version-only diff
• No credentials, logs, local QA output, or unrelated files committed