feat(chat): resolve org-chat mentions in their owner workspace and let chat tag a whole workspace

[waleedlatif1]

Summary

• Fix: in organization chats, tagged workflows, tables, files, file/table selections, knowledge bases, and folders were silently dropped server-side — every resolver required the chat's own workspace, which an org chat doesn't have. Each workspace-owned context now resolves in the owner workspace it carries, authorized per chat via resolveInvocationWorkspace (once per workspace, however many tags share it), and is prefixed Workspace <id>: like skills and resource tabs already were
• Workspace-owned kinds share one typed WorkspaceOwned owner field and one isWorkspaceOwnedContext guard (lib/mothership/chat/context-ownership.ts) used by both the prompt editor and the server — replaces the untyped workspaceId spread
• New workspace context kind: each workspace submenu in the org + menu now opens with the workspace itself as an attachable first row (same pattern as a folder's self-row). The server describes it through the existing readWorkspaceContext discovery use case, so a tag reveals nothing discovery wouldn't; an inaccessible or out-of-org workspace resolves to nothing. No worker contract change — the mention tells the model which workspace id to target; every tool call is still explicitly scoped and re-authorized
• Org resource menus now order workspaces like the sidebar (pinned, then recently visited) via useOrderedWorkspacesQuery, and show the workspace IdentityTile
• Workspace chats are unchanged: everything still resolves in the chat's own workspace

Type of Change

• Bug fix
• New feature

Testing

Type-check, lint:check, check:audits (49 audits), block registry, and docs manifest pass. New process-contents tests: owner-workspace resolution and the workspace mention fail on the pre-fix code; the unauthorized-owner and unknown-workspace guards fail when authorization is bypassed. Not yet exercised in a running org chat.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Sep 25, 2026 11:50pm UTC

[cubic-dev-ai]

No issues found across 13 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

[Medium risk] Adds workspace tagging to organization chats and cross-workspace resource resolution.

The PR appears safe to merge based on the reviewed changes and resolved prior threads.

Summary

This PR lets organization-chat resource mentions resolve in their authorized owner workspaces and adds a mention for an entire workspace. It also preserves resource ownership through copied chip links and adds coverage for those paths. The changes since the previous review replace mock-call assertions with result assertions and consolidate test mocks.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[Organization chat mention] --> B{Mention kind}
  B -->|Workspace-owned resource| C[Authorize owner workspace]
  C --> D[Resolve resource in owner workspace]
  B -->|Workspace| E[Authorized workspace discovery]
  D --> F[Chat context]
  E --> F

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[waleedlatif1]

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[waleedlatif1]

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[cubic-dev-ai]

All reported issues were addressed across 16 files

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[waleedlatif1]

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[waleedlatif1]

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[cubic-dev-ai]

No issues found across 16 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

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[waleedlatif1]

@greptile

[waleedlatif1]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

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[cubic-dev-ai]

No issues found across 19 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

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