archiving tracks

conductor/archive/per_ticket_model_20260306/plan.md

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+# Implementation Plan: Per-Ticket Model Override (per_ticket_model_20260306)
+
+> **Reference:** [Spec](./spec.md) | [Architecture Guide](../../../docs/guide_architecture.md)
+
+## Phase 1: Model Override Field
+Focus: Add field to Ticket dataclass
+
+- [x] Task 1.1: Initialize MMA Environment
+- [x] Task 1.2: Add model_override to Ticket (245653c)
+    - WHERE: `src/models.py` `Ticket` dataclass
+    - WHAT: Add optional model override field
+    - HOW:
+      ```python
+      @dataclass
+      class Ticket:
+       # ... existing fields ...
+       model_override: Optional[str] = None
+      ```
+
+- [x] Task 1.3: Update serialization (245653c)
+    - WHERE: `src/models.py` `Ticket.to_dict()` and `from_dict()`
+    - WHAT: Include model_override
+    - HOW: Add field to dict conversion
+
+## Phase 2: Model Dropdown UI
+Focus: Add model selection to ticket display
+
+- [x] Task 2.1: Get available models list (63d1b04)
+
+- [x] Task 2.2: Add dropdown to ticket UI (63d1b04)
+
+- [x] Task 3.1: Color-code override tickets (63d1b04)
+
+## Phase 4: Execution Integration
+Focus: Use override in worker execution
+
+- [x] Task 4.1: Check override in ConductorEngine.run() (e20f8a1)
+    - WHERE: `src/multi_agent_conductor.py` `run()`
+    - WHAT: Use ticket.model_override if set
+    - HOW:
+      ```python
+      if ticket.model_override:
+       model_name = ticket.model_override
+      else:
+       # Use existing escalation logic
+       models = ["gemini-2.5-flash-lite", "gemini-2.5-flash", "gemini-3.1-pro-preview"]
+       model_idx = min(ticket.retry_count, len(models) - 1)
+       model_name = models[model_idx]
+      ```
+
+## Phase 5: Testing
+- [x] Task 5.1: Write unit tests
+- [x] Task 5.2: Conductor - Phase Verification