fix(providers): add China Coding Plan baseUrl choice for Alibaba

[Wibias]

Summary

• Add Alibaba provider base URL choice for China Coding Plan endpoints.
• Update provider registry parity tests.

Fixes #756

Test plan

• �un run test (provider-registry-parity)

Security

• none

Summary by CodeRabbit

• New Features

  • Added Alibaba Coding Plan endpoint options for international and China mainland regions.
  • Added support for selecting a custom Alibaba endpoint URL.

• Tests

  • Added coverage to verify Alibaba endpoint choices and custom URL overrides are available.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Pro Plus

Run ID: 6f84ae2c-bbcd-429f-a323-698b3d44225b

📥 Commits

Reviewing files that changed from the base of the PR and between f2b61ee and 956d3b5.

📒 Files selected for processing (3)

• src/providers/base-url-choices.ts
• src/providers/registry.ts
• tests/provider-registry-parity.test.ts

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📝 Walkthrough

Walkthrough

Alibaba Coding Plan now provides international, China mainland, and custom base URL choices. The registry uses the international endpoint by default, and parity tests validate the available choices and override support.

Changes

Alibaba endpoint configuration

Layer / File(s)	Summary
Define Alibaba endpoint presets src/providers/base-url-choices.ts	Lines 42–51 add international and China mainland endpoint constants and export the corresponding choices with a custom URL option.
Wire endpoint choices into the provider registry src/providers/registry.ts	Lines 8 and 973 import the presets, use the international endpoint as the default, and enable base URL overrides for Alibaba.
Validate Alibaba endpoint parity tests/provider-registry-parity.test.ts	Lines 255–259 verify the three choices and their endpoints. Line 487 adds Alibaba to the permitted base URL override providers.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• lidge-jun/opencodex#407: Adds Alibaba regional base URL presets for endpoint selection.
• lidge-jun/opencodex#611: Updates provider registry endpoint presets and parity tests.
• lidge-jun/opencodex#615: Modifies provider registry and parity tests for provider configuration presets.

Suggested reviewers: lidge-jun, ingwannu

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly identifies the main change: adding an Alibaba China Coding Plan base URL choice.
Linked Issues check	✅ Passed	The changes add China and custom Alibaba base URL choices and registry parity coverage, meeting issue #756's objective.
Out of Scope Changes check	✅ Passed	The registry, base URL presets, custom override, and parity tests are directly related to issue #756.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[chatgpt-codex-connector]

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[Wibias]

[shipping-github] Merge-ready

• \mergeStateStatus: CLEAN, base \dev, no \CHANGES_REQUESTED\
• Cross-platform CI: all matrix jobs + enforce-target + label + react-doctor green
• CodeRabbit: SUCCESS (rate-limited summary only; no blocking review state)

[Wibias]

Verdict: approve-comment

• Usefulness: Fixes why can't use alibaba coding plan ? #756 dashboard China Coding Plan baseUrl rewrite.
• Bugs: none for GUI scope. Known follow-up: ocx login alibaba still defaults international.
• Security: preset URLs only.
• Owner/maintainer reviews: none.
• Bots: addressed / deferred.
• Base / CI: green / pending noise only.
• Gate: none for stated fix.

[Wibias]

Merging this.

Why it helps: China Coding Plan users can pick the mainland DashScope endpoint (or keep a custom URL) instead of being stuck on the international default.