yoi/.yoi/tickets/00001KTGM14G0/resolution.md

Implemented and merged.

Summary:

• Removed investigator from the fixed Ticket role set; remaining fixed roles are intake, orchestrator, coder, and reviewer.
• Updated Ticket config parsing and scaffold tests so [roles.investigator] is not emitted and stale [roles.investigator] config is rejected with a clear unsupported-role diagnostic.
• Updated role docs/workflow wording so investigation remains an optional task-specific helper Pod tactic rather than a configured fixed Ticket role.
• Preserved intake and existing planning/ready/queued/inprogress/done workflow semantics.

Implementation:

• Coder commit: 427a270 ticket: remove fixed investigator role
• Merge commit: b552372 merge: remove fixed investigator ticket role
• Reviewer: approved by reviewer-remove-fixed-investigator-ticket-role.

Validation:

• Coder/reviewer focused role/config/panel tests passed.
• Post-merge validation passed:
  • cargo fmt --check
  • git diff --check
  • cargo run -q -p yoi -- ticket doctor
  • cargo check --workspace
  • nix build .#yoi