Fix unknown server.connected SSE

[jacobjmc]

Summary

• handle unknown server.connected SSE events in the backend translation layer
• update related shared/frontend thread handling to keep session state in sync
• add regression coverage for the reducer path touched by this fix

Notes

• this PR was created from the local commit that could not be pushed directly to protected main

---

Summary by cubic

Fixes translation of unknown session/server SSE states so turns complete reliably and errors surface to the UI, and keeps removed threads hidden across syncs. Also improves background helper prompts and lets commit message generation use the selected model.

• Bug Fixes

  • Translate session.error SSE into a single error event and finish the turn.
  • Emit turn/completed on idle even when no active turn exists.
  • Keep removed threads hidden on future thread syncs (with tests).
  • Use the selected model for commit message generation.
  • Update About page GitHub link.

• Refactors

  • Replace SSE streaming for background helper prompts with REST polling of messages/status.
  • Parse assistant message parts and surface errors from message info.
  • Support model overrides via providerID/modelID or best-match by name.
  • Add tests for SSE translation and helper message parsing.

^{Written for commit c3621d0. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 7 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="src-tauri/src/shared/codex_aux_core.rs">

<violation number="1" location="src-tauri/src/shared/codex_aux_core.rs:429">
P2: `/session/status` can return "active" or "running"; treating only "busy"/"retry" as active causes premature "No response was generated" errors while the session is still processing. Include the other active status values in the reset case.</violation>
</file>

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