feat(provider): Fix provider_id conflicts and remove connection test in custom provider

[pan-x-c]

Description

1. Optimized the handling logic forprovider_id conflicts, no longer throwing exceptions but directly renaming the ID. (Does not support dashscope-intl and coding-intl subdomains of aliyuncs #1145)

2. Hides the connection test button on the custom provider configuration page, as many custom inference services do not provide the necessary testing interfaces. (桌面端配置MiniMax模型无法连通，修改配置文件可以连通但无法正常使用 #1175)

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]

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[Copilot]

Pull request overview

This PR changes custom provider creation behavior to automatically resolve provider_id conflicts (instead of throwing), and updates the console UI to hide the “Test connection” action for custom providers.

Changes:

• Backend: auto-renames conflicting/duplicate custom provider IDs during creation and returns the resolved ProviderInfo.
• CLI: prints the resolved provider id (and requested id if it changed) after creating a custom provider.
• Console: hides the “Test connection” button for custom providers; updates unit tests to match the new conflict-resolution behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
src/copaw/providers/provider_manager.py	Adds ID conflict resolution for custom providers and updates custom provider creation payload.
src/copaw/cli/providers_cmd.py	Captures/prints returned ProviderInfo so the CLI reflects any auto-renamed IDs.
console/src/pages/Settings/Models/components/modals/ProviderConfigModal.tsx	Hides “Test connection” button for custom providers.
tests/unit/providers/test_provider_manager.py	Updates tests to assert auto-renaming behavior for conflicts/duplicates.

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