- Used the active provider session id for title credential selection.
- Covered explicit provider-session credential stickiness alongside disposal cancellation.
- Routed automatic first-input and replan title requests through AgentSession lifecycle cancellation.
- Propagated disposal aborts to online provider and local tiny-model title generation.
- Added a regression test proving an in-flight title request settles when disposal begins.
Fixes#5666
roboomp