fix(settings): make API key and base URL actions discoverable

[Vizards]

Related issues

Closes #270

Problem

Users who find the Base URL setting still have to discover hidden reset controls or Command Palette commands to manage their API key. Missing-key chat errors also leave them without a direct configuration action.

Changes and scope

• Add Reset to Default, Set / Update API Key, and Clear API Key links to the Base URL description in English and Chinese.
• Always show a scope picker before resetting, including when only User Settings is available. Preview the current URL and reset result; remove only the selected override. Unset scopes are no-ops, and successful resets do not show notifications.
• Confirm API key removal before invoking the existing SecretStorage deletion. Preserve the settings fallback and key lookup priority.
• Add a Set API Key link to local missing-key chat errors through the existing URI action flow used by HTTP 401 errors.

Language model management and provider configuration migration remain out of scope. The commit and PR use fix(settings) for release-please; version files remain at 0.9.1.

Validation

• Passed lint, formatting, TypeScript compilation, and VSIX packaging with Node 24.
• Passed 37 local regression checks covering reset scopes, previews, cancellation, notifications, key-removal confirmation, and error links.
• VS Code 1.137.0 extension-host checks covered empty windows (3), single-folder workspaces (13), and multi-root workspaces (14).
• Chinese Settings flows were exercised during review. Signed-in Copilot Chat end-to-end behavior and a real Remote window were not exercised.

Final checks

• I reviewed and can explain every change
• I reviewed any user-facing text changes in both English and Chinese
• This pull request contains no API keys, authorization headers, private prompts, private code, or unreviewed sensitive logs

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-14T10:20:26.650921Z	7d58577	PR opened

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[Copilot]

🟢 Approval recommended

No unresolved issues were identified in the reviewed changes.

Pull request overview

Improves discoverability of Base URL and API key actions in Settings and chat errors.

Changes:

• Adds localized configuration links and scoped Base URL reset.
• Confirms API key removal.
• Adds actionable missing-key error links.

File summaries

File	Summary
src/runtime/commands.ts	Implements scoped Base URL reset.
src/provider/request.ts	Uses actionable missing-key errors.
src/provider/index.ts	Confirms API key removal.
src/i18n.ts	Adds localized messages.
src/client/index.ts	Exports the new error helper.
src/client/error/index.ts	Adds missing-key action links.
package.nls.zh-cn.json	Adds Chinese Settings links.
package.nls.json	Adds English Settings links.
package.json	Registers the command and Markdown description.

Review details

• Files reviewed: 9/9 changed files
• Comments generated: 0
• Review effort level: Lite (auto)

Note

Copilot is running an experiment and ran this review at Lite.

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