CLAUDE: Update handoff doc with Part 3 completion

Updated cleanup handoff document with Session 1 Part 3 completion.

Changes documented:
- Part 3: Defensive alignment removal (11 files modified)
- Updated progress: 3/11 changes complete (27%)
- Session 1 now 60% complete (Parts 1-3 done, 4-5 remaining)

Next steps:
- Part 4: Remove offensive approach field (detailed in doc)
- Estimated 15-20 minutes
- Same pattern as Part 3

Ready for context switch to new session.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/HANDOFF_PROMPT_CLEANUP.md

@@ -2,7 +2,7 @@
 
 **Date**: 2025-01-14
 **Current Session**: Cleanup of proposed changes from demo review
-**Status**: Session 1 Part 1 Complete (2/11 changes done)
+**Status**: Session 1 Part 3 Complete (3/11 changes done - 27%)
 
 ---
 
@@ -11,26 +11,26 @@
 ```
 I'm continuing cleanup work on the Paper Dynasty / SBA web app. We're making changes based on a review of the frontend demo pages.
 
-Current status: Session 1 Part 1 complete (removed 4 unused config fields). Now need to continue with Session 1 Part 2 and beyond.
+Current status: Session 1 Part 3 complete (3/11 changes done). Now continuing with Session 1 Part 4.
 
 Please read these files for full context:
 - @.claude/PROPOSED_CHANGES_2025-01-14.md (master list of all 11 changes)
-- @.claude/TODO_CLEANUP_COMPLETE.md (what we just finished)
-- @backend/app/config/base_config.py (we just modified this)
-- @backend/tests/unit/config/test_league_configs.py (we just modified this)
 
 Key decisions from Cal:
-1. Remove supports_manual_result_selection() - DONE ✅
+1. Remove supports_manual_result_selection() - ✅ DONE (Part 1)
 2. Pitching change player ID - Will use league-independent polymorphic Player ID
-3. Remove defensive alignment & offensive approach - DONE, remove completely
+3. Remove defensive alignment & offensive approach - ✅ ALIGNMENT DONE (Part 3), approach next
 4. Offensive workflow refactor - YES, do before Phase F6 (last thing in cleanup)
-5. Hit location fix - Only needed for: GROUNDOUT, FLYOUT, LINEOUT, SINGLE_UNCAPPED, DOUBLE_UNCAPPED, ERROR
+5. Hit location fix - ✅ DONE (Part 2): GROUNDOUT, FLYOUT, LINEOUT, SINGLE_UNCAPPED, DOUBLE_UNCAPPED, ERROR
+
+Completed (Session 1 Parts 1-3):
+✅ Part 1: Removed strikes_for_out, balls_for_walk, supports_manual_result_selection()
+✅ Part 2: Fixed hit location requirements (reduced from 11 to 6 outcomes)
+✅ Part 3: Removed defensive alignment field (11 files modified)
 
 Current TODO list (in TodoWrite):
-- [completed] Remove strikes_for_out and balls_for_walk fields
+- [completed] Fix hit location requirements in ManualOutcomeEntry.vue
-- [completed] Remove supports_manual_result_selection() method
+- [completed] Remove defensive alignment from DefensiveDecision model
-- [pending] Fix hit location requirements
-- [pending] Remove defensive alignment from DefensiveDecision model
 - [pending] Remove offensive approach from OffensiveDecision model
 - [pending] Add infield depth validation (infield_in, corners_in, normal)
 - [pending] Add outfield depth validation (normal, shallow with walk-off rules)
@@ -38,18 +38,69 @@ Current TODO list (in TodoWrite):
 - [pending] Add check jump validation (lead runner only)
 
 Workflow:
-- Session 1: Quick wins (Changes #1-5) - IN PROGRESS
+- Session 1: Quick wins (Changes #1-5) - 60% COMPLETE (Parts 4-5 remaining)
 - Session 2: Standard changes (Changes #6-7) - NOT STARTED
 - Session 3: Major refactor (Changes #8-11) - NOT STARTED
 
 Dev server is running at http://localhost:3005 with demo pages.
 
-Please continue from Session 1 Part 2: Fix hit location requirements.
+Please continue from Session 1 Part 4: Remove offensive approach field from OffensiveDecision model.
 ```
 
 ---
 
-## Files Modified So Far (Session 1 Part 1)
+## Files Modified So Far
+
+### Session 1 Part 3: Remove Defensive Alignment (11 files)
+
+**Backend** (5 files):
+1. `backend/app/models/game_models.py`
+   - Removed `alignment` field from DefensiveDecision (line 154)
+   - Removed `validate_alignment()` method (lines 159-166)
+
+2. `backend/terminal_client/display.py`
+   - Removed alignment from defensive decision display (line 191)
+
+3. `backend/app/core/ai_opponent.py`
+   - Updated log message to remove alignment reference (line 82)
+
+4. `backend/tests/unit/models/test_game_models.py`
+   - Removed 3 alignment tests (lines 235-245)
+
+5. `backend/tests/unit/core/test_validators.py`
+   - Removed test_validate_defensive_decision_invalid_alignment (lines 180-191)
+
+**Frontend** (3 files):
+1. `frontend-sba/types/game.ts`
+   - Removed `alignment` field from DefensiveDecision interface (line 125)
+
+2. `frontend-sba/components/Decisions/DefensiveSetup.vue`
+   - Removed "Defensive Alignment" section (lines 19-31)
+   - Removed `alignment` from localSetup (line 154)
+   - Removed `alignmentOptions` array (lines 175-180)
+   - Removed `alignmentDisplay` computed (lines 197-200)
+   - Removed `alignment` from hasChanges (line 226)
+   - Reorganized preview grid (alignment row removed, holding now col-span-2)
+
+**Git commits**:
+- Commit 2f0f35f: Hit location fix
+- Commit 197d91e: Defensive alignment removal
+
+**Tests**: ✅ All 728 backend unit tests passing
+
+---
+
+### Session 1 Part 2: Fix Hit Location Requirements (1 file)
+
+**Frontend**:
+1. `frontend-sba/components/Gameplay/ManualOutcomeEntry.vue:152-160`
+   - Reduced `outcomesNeedingHitLocation` from 11 to 6 outcomes
+   - Removed: SINGLE_1, SINGLE_2, DOUBLE_2, DOUBLE_3, TRIPLE
+   - Kept: GROUNDOUT, FLYOUT, LINEOUT, SINGLE_UNCAPPED, DOUBLE_UNCAPPED, ERROR
+
+---
+
+### Session 1 Part 1: Remove Unused Config Fields (2 files)
 
 ### backend/app/config/base_config.py
 **Changes**: Removed 3 items
@@ -70,12 +121,57 @@ Please continue from Session 1 Part 2: Fix hit location requirements.
 
 ---
 
-## Next Steps (Session 1 Part 2)
+## Next Steps (Session 1 Part 4)
 
-### Change #5: Fix Hit Location Requirements
+### Change #7: Remove Offensive Approach
 
-**Current Problem**:
+**Pattern**: Same as Part 3 (defensive alignment removal)
-`frontend-sba/components/Gameplay/ManualOutcomeEntry.vue:152` has:
+
+**Files to Modify**:
+
+**Backend** (~5 files):
+1. `backend/app/models/game_models.py` - OffensiveDecision class
+   - Remove `approach` field (currently line ~193)
+   - Remove `validate_approach()` method if exists
+
+2. `backend/terminal_client/display.py`
+   - Remove approach from offensive decision display (~line 196-197)
+
+3. `backend/app/core/ai_opponent.py`
+   - Update offensive decision generation (remove approach)
+
+4. `backend/tests/unit/models/test_game_models.py`
+   - Remove approach-related tests
+
+5. `backend/tests/unit/core/test_validators.py`
+   - Remove approach validation test if exists
+
+**Frontend** (~3 files):
+1. `frontend-sba/types/game.ts`
+   - Remove `approach` field from OffensiveDecision interface
+
+2. `frontend-sba/components/Decisions/OffensiveApproach.vue`
+   - Remove "Batting Approach" section from template
+   - Remove `approach` from localSetup
+   - Remove approachOptions array
+   - Remove approachDisplay computed
+   - Remove approach from hasChanges
+
+3. Check for any other usages:
+   - Grep for `.approach` in frontend
+
+**Note**: Offensive approach will be replaced in Session 3 (Change #10) with specific actions: swing_away, check_jump, hit_and_run, sac_bunt, squeeze_bunt. For now, just remove the unused field.
+
+**Estimated Time**: 15-20 minutes
+
+---
+
+## Completed Steps
+
+### Change #5: Fix Hit Location Requirements ✅ DONE
+
+**Problem**:
+`frontend-sba/components/Gameplay/ManualOutcomeEntry.vue:152` had:
 ```typescript
 const outcomesNeedingHitLocation = [
   'GROUNDOUT',