feat(provider): Support integration with OpenCode

[lhpqaq]

Description

[Describe what this PR does and why]

I’ve taken task 16 in #2292 to implement native support for opencode zen (https://opencode.ai/zh/zen), and #2428 appears to be based on a reverse proxy.

Related Issue: Fixes #(issue_number) or Relates to #(issue_number)

Security Considerations: [If applicable, e.g. channel auth, env/config handling]

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• Refactoring

Component(s) Affected

• Core / Backend (app, agents, config, providers, utils, local_models)
• Console (frontend web UI)
• Channels (DingTalk, Feishu, QQ, Discord, iMessage, etc.)
• Skills
• CLI
• Documentation (website)
• Tests
• CI/CD
• Scripts / Deploy

Checklist

• I ran pre-commit run --all-files locally and it passes
• If pre-commit auto-fixed files, I committed those changes and reran checks
• I ran tests locally (pytest or as relevant) and they pass
• Documentation updated (if needed)
• Ready for review

Testing

[How to test these changes]

Local Verification Evidence

pre-commit run --all-files
# paste summary result

pytest
# paste summary result

Additional Notes

[Optional: any other context]

[github-actions]

Welcome to CoPaw! 🐾

Hi @lhpqaq, thank you for your first Pull Request! 🎉

🙌 Join Developer Community

Thanks so much for your contribution! We'd love to invite you to join the official CoPaw developer group! You can find the Discord and DingTalk group links under the "Developer Community" section on our docs page:
https://copaw.agentscope.io/docs/community

We truly appreciate your enthusiasm—and look forward to your future contributions! 😊

We'll review your PR soon.

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[gemini-code-assist]

Code Review

This pull request introduces the 'OpenCode' LLM provider, adding support across the frontend configuration modals, backend provider management, and documentation. The review feedback identifies critical issues in the new unit tests, specifically that several models being tested or activated are missing from the provider's defined model list. There are also recommendations to improve code maintainability by refactoring series of conditional statements into map-based lookups in the frontend and ensuring consistent sequential numbering in the provider baseline documentation.

[Copilot]

Pull request overview

Adds a first-class built-in OpenCode (Zen) provider so CoPaw can talk to OpenCode’s OpenAI-compatible endpoint, with accompanying console hints, baseline capability annotations, docs, and unit tests.

Changes:

• Add opencode as a built-in OpenAIProvider in ProviderManager (base URL https://opencode.ai/zen/v1) and register baseline capabilities.
• Update docs (EN/ZH) to list OpenCode as a cloud/built-in provider and add a dedicated OpenCode section.
• Add unit tests for OpenCode provider registration/config and basic connectivity.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
website/public/docs/models.zh.md	Documents OpenCode provider setup (console + CLI) in Chinese.
website/public/docs/models.en.md	Documents OpenCode provider setup (console + CLI) in English.
website/public/docs/config.zh.md	Adds OpenCode row to built-in providers table (ZH).
website/public/docs/config.en.md	Adds OpenCode row to built-in providers table (EN).
tests/unit/providers/test_opencode_provider.py	New unit tests for the OpenCode provider/built-in registration.
src/copaw/providers/provider_manager.py	Introduces OPENCODE_MODELS, PROVIDER_OPENCODE, and registers it as a built-in provider.
src/copaw/providers/capability_baseline.py	Adds OpenCode expected capability baseline entries; updates baseline docstring.
console/src/pages/Settings/Models/components/modals/ProviderConfigModal.tsx	Adds OpenCode endpoint hint/placeholder handling in provider config modal.

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 6 comments.

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[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated 2 comments.

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