feat: [TBB] Implement quota warning handling and UI updates for TBB

[ethanyhou]

Test:
1. Using debug templates with numbers to debug:

• Switch CLS to ethan/tbb-notification, this branch is based on release/1.9.0 with customized debug templates.
• As Copilot for eclipse doesn't have debug templates enabled for the slash commands, please paste manually.

  • /debug.ratelimit.notify 70 to test the weekly rate limit warn

    • 

  • /debug.ratelimit.notify sesssion 90 to test the session rate limit warn

    • 

  • /debug.quota.warn 90 to test the quota warn

    • 

  • /debug/byok.error to test inline byok warn

    • 

2. Using real account with quota portal.

• Switch CLS to release/1.9.0
• The rate limit and BYOK warns are hard to repro, but the quota warn can be tested via modify the quota usage via quota portal, then chat with Copilot.

A follow up commit will be pushed once this PR is reviewed to guard the period before the TBB release since the auto fallback is removed in TBB.

[Copilot]

Pull request overview

Implements quota-warning handling for TBB in the Copilot Eclipse chat UI, including new language-server notification plumbing, static/inline quota warning UI, and BYOK quota messaging.

Changes:

• Adds quota warning protocol/event handling and ChatView banner rendering.
• Refactors static/inline warning UI to support plan-driven actions.
• Persists/restores BYOK model-provider information for error rendering.

Reviewed changes

Copilot reviewed 28 out of 29 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/i18n/messages.properties	Updates quota action labels/tooltips.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/i18n/Messages.java	Reflects updated i18n keys.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/WarnWidget.java	Adds plan-driven warning buttons.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/tools/FileToolService.java	Reparents working-set bar under input area.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/StaticBanner.java	Refactors banner to support severity and action links.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/services/TodoListService.java	Reparents todo list bar under input area.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/QuotaActions.java	Adds shared plan-to-action mapping.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/messages.properties	Adds BYOK quota message.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/Messages.java	Exposes BYOK quota message key.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/ChatView.java	Subscribes to quota warnings and renders banners.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/ChatContentViewer.java	Sanitizes request IDs and passes provider names to warnings.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/BaseTurnWidget.java	Handles BYOK vs plan-driven 402 warnings.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/BannerAction.java	Adds banner action record.
com.microsoft.copilot.eclipse.ui/src/com/microsoft/copilot/eclipse/ui/chat/ActionBar.java	Adds rate/quota banner APIs and input-area wrapper.
com.microsoft.copilot.eclipse.ui/META-INF/MANIFEST.MF	Adds a UI bundle dependency.
com.microsoft.copilot.eclipse.ui.test/src/com/microsoft/copilot/eclipse/ui/i18n/MessagesTest.java	No functional test change.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/persistence/CopilotTurnData.java	Persists model provider on errors.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/persistence/ConversationDataFactory.java	Copies provider name into persisted error data.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/quota/QuotaWarningParams.java	Adds quota warning DTO.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/quota/QuotaWarningNotification.java	Adds quota warning notification DTO.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/quota/QuotaChangeParams.java	Adds quota change DTO.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/quota/IntervalQuota.java	Adds interval quota DTO.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/ConversationError.java	Adds model provider to conversation errors.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/ChatTurnResult.java	Loosens null annotations.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/ChatProgressValue.java	Exposes error model provider.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/protocol/ChatCreateResult.java	Loosens null annotations.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/lsp/CopilotLanguageClient.java	Handles quota warning notifications.
com.microsoft.copilot.eclipse.core/src/com/microsoft/copilot/eclipse/core/events/CopilotEventConstants.java	Adds quota warning event topic.
com.microsoft.copilot.eclipse.core.test/src/com/microsoft/copilot/eclipse/core/lsp/CopilotLanguageClientTests.java	Tests quota warning event posting.

[jdneo]

#203