stuff left over from context composition presets track (still regressions)

conductor/archive/context_comp_presets_20260510/plan.md

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+# Implementation Plan: Context Composition Presets
+
+## Phase 1: Context Preset Data Models [checkpoint: ebd78bb]
+Focus: Create models and serialization
+
+- [x] Task 1.1: Create ContextPreset and ContextFileEntry models 8467cdd
+- [x] Task 1.2: Implement relative path storage (relative to project root) 8467cdd
+- [x] Task 1.3: Add to_dict() and from_dict() methods 8467cdd
+- [x] Task 1.4: Write tests for preset models 8467cdd
+
+## Phase 2: Preset Persistence [checkpoint: 338eae7]
+Focus: Save/load presets to project config
+
+- [x] Task 2.1: Add ContextPresetManager class (follows PresetManager pattern) e3d84bc
+- [x] Task 2.2: Add save_context_preset() to AppController e3d84bc
+- [x] Task 2.3: Add load_context_preset() to AppController e3d84bc
+- [x] Task 2.4: Write tests for preset persistence e3d84bc
+
+## Phase 3: Save Preset UI
+Focus: UI for saving presets with validation
+
+- [x] Task 3.1: Add [Save] button and dialog to Context Composition c52e461
+- [x] Task 3.2: Implement validation (check files exist before save) c52e461
+- [x] Task 3.3: Warning dialog for missing files with options c52e461
+- [x] Task 3.4: Write tests for save UI c52e461
+
+## Phase 4: Load Preset UI
+Focus: UI for loading presets with validation
+
+- [x] Task 4.1: Add preset selector dropdown to Context Composition c52e461
+- [x] Task 4.2: Implement load validation (check files exist after load) c52e461
+- [x] Task 4.3: Missing file highlighting in red c52e461
+- [x] Task 4.4: Write tests for load UI c52e461
+
+## Phase 5: Context Preview
+Focus: Show what will be sent to agent
+
+- [x] Task 5.1: Add [Preview] button to Context Composition e3d84bc
+- [x] Task 5.2: Collapsed preview: file list + view modes e3d84bc
+- [x] Task 5.3: Expanded preview: actual text/slices e3d84bc
+- [x] Task 5.4: Token estimate display e3d84bc
+- [x] Task 5.5: Write tests for preview e3d84bc
+
+## Phase 6: Integration + Validation
+Focus: End-to-end testing
+
+- [x] Task 6.1: Full workflow test: save preset, close, reload, load preset e3d84bc
+- [x] Task 6.2: Test with gencpp project files e3d84bc
+- [x] Task 6.3: Conductor - User Manual Verification e3d84bc