yoi/.yoi/tickets/00001KTKES290/resolution.md

Implemented, reviewed, merged, and validated.

Summary:

• Migrated current Ticket storage from .yoi/tickets/{open,pending,closed}/<id-or-slug>/ buckets to flat .yoi/tickets/<ticket-id>/ directories.
• Simplified current Ticket identity to opaque path-derived canonical IDs such as YYYYMMDD-HHMMSS-NNN; title remains user-facing display/search text, but slug/title words are not canonical identity.
• Simplified current frontmatter to use canonical state instead of independent status / workflow_state axes.
• Removed current authority for frontmatter id, slug, kind, unmanaged labels, status, and workflow_state.
• Preserved distinct done vs closed lifecycle semantics; close records state: closed and resolution.md without moving directories.
• Updated Ticket backend, CLI, built-in tools, panel/TUI, role/session claims, orchestration-plan references, workflows, docs, tests, and local Ticket records to the flat ID/state model.
• Migrated local Ticket records, including merge-boundary records created while the branch was under review.

Implementation:

• Coder commits included 191a875, 591db3f, 21114fd, 8fe4b82, 6ca27f3, and a6326a9.
• Reviewer approved after fix loops.
• Merge commit: 634da5d merge: simplify ticket identity fields.

Validation:

• Pre-merge and merge-boundary validation passed:
  • cargo fmt --check
  • git diff --check
  • cargo run -q -p yoi -- ticket doctor
  • cargo test -p ticket
  • cargo check --workspace
  • nix build .#yoi
• After runtime/tooling refresh, new tools also read the flat layout successfully and cargo run -q -p yoi -- ticket doctor reports doctor: ok.