WIP almost done with track planning

conductor/tracks/per_ticket_model_20260306/spec.md

@@ -1,27 +1,21 @@
-# Track Specification: Per-Ticket Model Override
+# Track Specification: Per-Ticket Model Override (per_ticket_model_20260306)
 
 ## Overview
-Allow manual model selection per ticket.
+Allow user to manually select which model to use for a specific ticket, overriding the default tier model. Useful for forcing smarter model on hard tickets.
 
-## Current State Audit
-### Already Implemented
-- Model selection per tier
-- Ticket model field
-
-### Gaps to Fill
-- No per-ticket override UI
-- No model picker
-
-## Goals
-- Model dropdown per ticket
-- Override default tier model
-- Clear override indication
+## Architectural Constraints
+- **Validation**: Selected model MUST be valid and available.
+- **Clear Override**: Override MUST be visually distinct.
 
 ## Functional Requirements
-- Model picker UI
-- Override flag
-- Model validation
+- **Model Dropdown**: Select model per ticket.
+- **Override Flag**: Mark ticket as using override.
+- **Clear Indicator**: Visual show override is active.
+- **Reset Option**: Remove override and revert to tier default.
 
-## Non-Functional Requirements
-- Valid model list
-- Clear indication of override
+## Acceptance Criteria
+- [ ] Model dropdown works.
+- [ ] Override saves correctly.
+- [ ] Visual indicator shows override.
+- [ ] Reset returns to default.
+- [ ] Override used during execution.