hopefully done refining

conductor/tracks/per_ticket_model_20260306/plan.md

@@ -1,32 +1,82 @@
 # Implementation Plan: Per-Ticket Model Override (per_ticket_model_20260306)
 
-## Phase 1: Model Field
-- [ ] Task: Initialize MMA Environment
-- [ ] Task: Add override field
-    - WHERE: src/models.py
-    - WHAT: model_override on Ticket
-    - HOW: Optional[str]
-- [ ] Task: Update ticket creation
-    - WHERE: src/conductor_tech_lead.py
-    - WHAT: Pass override to ticket
-    - HOW: Include in ticket dict
+> **Reference:** [Spec](./spec.md) | [Architecture Guide](../../../docs/guide_architecture.md)
 
-## Phase 2: UI Controls
-- [ ] Task: Add model dropdown
-    - WHERE: src/gui_2.py
-    - WHAT: Select model per ticket
-    - HOW: imgui.combo with model list
-- [ ] Task: Add override indicator
-    - WHERE: src/gui_2.py
-    - WHAT: Show override is active
-    - HOW: Different style
+## Phase 1: Model Override Field
+Focus: Add field to Ticket dataclass
 
-## Phase 3: Execution Integration
-- [ ] Task: Use override at runtime
-    - WHERE: src/multi_agent_conductor.py
+- [ ] Task 1.1: Initialize MMA Environment
+- [ ] Task 1.2: Add model_override to Ticket
+    - WHERE: `src/models.py` `Ticket` dataclass
+    - WHAT: Add optional model override field
+    - HOW:
+      ```python
+      @dataclass
+      class Ticket:
+       # ... existing fields ...
+       model_override: Optional[str] = None
+      ```
+
+- [ ] Task 1.3: Update serialization
+    - 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
+
+- [ ] Task 2.1: Get available models list
+    - WHERE: `src/gui_2.py` or from cost_tracker
+    - WHAT: List of available models
+    - HOW:
+      ```python
+      AVAILABLE_MODELS = ["gemini-2.5-flash-lite", "gemini-2.5-flash", "gemini-3.1-pro-preview", "claude-3-5-sonnet", "deepseek-v3"]
+      ```
+
+- [ ] Task 2.2: Add dropdown to ticket UI
+    - WHERE: `src/gui_2.py` ticket rendering
+    - WHAT: Combo for model selection
+    - HOW:
+      ```python
+      current_model = ticket.model_override or "Default"
+      if imgui.begin_combo("Model", current_model):
+       if imgui.selectable("Default", ticket.model_override is None):
+        ticket.model_override = None
+       for model in AVAILABLE_MODELS:
+        if imgui.selectable(model, ticket.model_override == model):
+         ticket.model_override = model
+       imgui.end_combo()
+      ```
+
+## Phase 3: Visual Indicator
+Focus: Show when override is active
+
+- [ ] Task 3.1: Color-code override tickets
+    - WHERE: `src/gui_2.py` ticket rendering
+    - WHAT: Visual distinction for override
+    - HOW:
+      ```python
+      if ticket.model_override:
+       imgui.text_colored(vec4(255, 200, 100, 255), f"[{ticket.model_override}]")
+      ```
+
+## Phase 4: Execution Integration
+Focus: Use override in worker execution
+
+- [ ] Task 4.1: Check override in ConductorEngine.run()
+    - WHERE: `src/multi_agent_conductor.py` `run()`
     - WHAT: Use ticket.model_override if set
-    - HOW: Check and apply
+    - 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 4: Verification
-- [ ] Test override works
-- [ ] Conductor - Phase Verification
+## Phase 5: Testing
+- [ ] Task 5.1: Write unit tests
+- [ ] Task 5.2: Conductor - Phase Verification