WIP almost done with track planning

conductor/tracks/cost_token_analytics_20260306/plan.md

@@ -1,16 +1,32 @@
-# Implementation Plan: Cost & Token Analytics Panel (cost_token_analytics)
+# Implementation Plan: Cost & Token Analytics Panel (cost_token_analytics_20260306)
 
-## Phase 1: Research & Design
-- [ ] Task: Analyze existing backend implementation
-- [ ] Task: Design GUI/UX approach
-- [ ] Task: Conductor - User Manual Verification
+## Phase 1: Panel Setup
+- [ ] Task: Initialize MMA Environment
+- [ ] Task: Create cost panel structure
+    - WHERE: src/gui_2.py
+    - WHAT: New panel for cost display
+    - HOW: Add _render_cost_panel method
+    - SAFETY: Non-blocking updates
 
-## Phase 2: Implementation
-- [ ] Task: Implement feature
-- [ ] Task: Write tests
-- [ ] Task: Conductor - User Manual Verification
+## Phase 2: Cost Calculations
+- [ ] Task: Integrate cost_tracker
+    - WHERE: src/gui_2.py
+    - WHAT: Use cost_tracker.estimate_cost
+    - HOW: Call with model and token counts
+    - SAFETY: Cache expensive calculations
+- [ ] Task: Track session totals
+    - WHERE: src/gui_2.py or app_controller
+    - WHAT: Accumulate cost over session
+    - HOW: Maintain running total
+    - SAFETY: Thread-safe updates
 
-## Phase 3: Verification
-- [ ] Task: Run test suite
-- [ ] Task: Verify coverage
-- [ ] Task: Conductor - Phase Completion Verification
+## Phase 3: UI Implementation
+- [ ] Task: Render cost breakdown
+    - WHERE: src/gui_2.py
+    - WHAT: Show per-model and per-tier costs
+    - HOW: imgui tables
+    - SAFETY: Handle zero/empty states
+
+## Phase 4: Verification
+- [ ] Task: Test cost calculations
+- [ ] Task: Conductor - Phase Verification