build(workspace): pin Aliyun PyPI mirror and refresh uv.lock

Set `index-url` under `[tool.uv]` so all consumers (local devs and the
Jenkins image) resolve from `mirrors.aliyun.com/pypi/simple` by default
instead of relying on the per-stage `UV_INDEX_URL` env var in Jenkinsfile.
Local overrides remain available via `UV_INDEX_URL=... uv sync`.

Re-run `uv lock` to rewrite package sources/URLs from `pypi.org` to
the Aliyun mirror; versions, hashes, and resolution are unchanged.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

pyproject.toml

@@ -23,6 +23,11 @@ dev = [
     "pytest>=8.3.0",
 ]
 
+[tool.uv]
+# Aliyun PyPI mirror for CN networks. Override locally with UV_INDEX_URL
+# (e.g. `UV_INDEX_URL=https://pypi.org/simple uv sync`).
+index-url = "https://mirrors.aliyun.com/pypi/simple"
+
 [tool.uv.workspace]
 members = [
     "apps/cloud-api",