Let projects switch between Claude and OpenAI

[pathscale]

Summary

• offer every enabled Claude and OpenAI model in project tabs, with the selected provider carried through creation, sending, recovery, transcripts, and run status
• keep independent provider sessions and restore reopened projects from their last conversational provider
• replace Claude conditionals with structured provider capabilities for approvals, live follow-up, commands, and compaction controls
• namespace transient commands, quota reports, partial replies, checkpoint marks, and context lookup by provider
• let Settings choose the Task Manager provider, enabled model, effort, permission posture, and working directories
• make manual compaction, pre-compaction notes, automatic checkpoints, samples, and events provider-aware
• update to agent-abstraction 0.4.4 for live-follow-up and approval capabilities
• preserve legacy Claude session and checkpoint keys for backward compatibility
• keep Copilot out of project runs until its later integration
• bump the release version to 0.1.55

Review follow-up

• restore a reopened project to the provider, model, and permission from ordered conversation history
• centralize capability-aware permission compatibility across new tabs, reopened tabs, settings changes, and model switches
• remove the unimplemented tab-state RPC; unsent selection remains frontend state and sent selection restores from history
• clear every current provider session and checkpoint key when deleting a project
• carry provider identity in partial-reply recovery and every run lifecycle event
• retain tests for session isolation, the full live-follow-up truth table, legacy recovery, and provider-scoped checkpoints

Verification

• bun run lint
• bun run typecheck
• bun run test:run (263 tests)
• bun run build
• cargo test --workspace (142 tests)
• cargo fmt --check
• cargo clippy --workspace --all-targets -- -D warnings
• git diff --check
• Brave-only CDP smoke test on port 3010: project model menu, OpenAI model choices, and Task Manager provider settings
• cargo tauri build --config tauri.dev.conf.json produced the AgencyZero Dev bundle; updater signing then stopped because the release private key is intentionally unavailable locally

Known limitations

Copilot project runs remain out of scope. Provider-specific controls are now capability-driven; Codex currently reports no command vocabulary, live follow-up, or interactive approvals, so those controls remain unavailable instead of silently using Claude behavior.