Feature: Workspace All-Chats View Across Projects

[imharrisonking]

Description

Build /app/chat as a workspace-level index of chat sessions across all projects. Users should be able to discover sessions by project and navigate to project-scoped chat routes.

Acceptance Criteria

• /app/chat lists chat sessions across the active workspace.
• Sessions can be filtered by project.
• Sessions display key metadata (title, project, updated time).
• Selecting a session deep-links to /app/projects/:projectId/chat with the selected session.

Tasks

• Create workspace all-chats route and base UI.
• Query sessions across workspace via TanStackDB/Electric collections.
• Add project filter controls and grouping.
• Implement navigation/deep-link behavior to project chat.
• Add tests for list/filter/navigation behavior.

Tracer Bullet Reference

Depends on tracer bullets for project chat streaming and session switching.

Additional Context

Sessions remain project-scoped; this view is a cross-project index.