chore: record journal

.trellis/workspace/zl-q/index.md

@@ -8,7 +8,7 @@
 
 <!-- @@@auto:current-status -->
 - **Active File**: `journal-1.md`
-- **Total Sessions**: 7
+- **Total Sessions**: 8
 - **Last Active**: 2026-04-15
 <!-- @@@/auto:current-status -->
 
@@ -19,7 +19,7 @@
 <!-- @@@auto:active-documents -->
 | File | Lines | Status |
 |------|-------|--------|
-| `journal-1.md` | ~413 | Active |
+| `journal-1.md` | ~445 | Active |
 <!-- @@@/auto:active-documents -->
 
 ---
@@ -29,6 +29,7 @@
 <!-- @@@auto:session-history -->
 | # | Date | Title | Commits |
 |---|------|-------|---------|
+| 8 | 2026-04-15 | Session deletion anonymization for iOS compliance | `c2b726e` |
 | 7 | 2026-04-15 | 六爻算法修复 + Prompt架构重构 + i18n输出规则 | `9598d16`, `be68681` |
 | 6 | 2026-04-13 | 修复追问链路与上限判定 | - |
 | 5 | 2026-04-13 | feat: 邀请码显示功能 - 后端API + 前端对接 | - |

.trellis/workspace/zl-q/journal-1.md

@@ -411,3 +411,35 @@
 ### Next Steps
 
 - None - task complete
+
+
+## Session 8: Session deletion anonymization for iOS compliance
+
+**Date**: 2026-04-15
+**Task**: Session deletion anonymization for iOS compliance
+
+### Summary
+
+Replace soft-delete with anonymize + hard-delete. Add anonymous_session_snapshots table for analytics. Remove points_ledger.biz_id FK constraint for snapshot-style reference.
+
+### Main Changes
+
+
+
+### Git Commits
+
+| Hash | Message |
+|------|---------|
+| `c2b726e` | (see git log) |
+
+### Testing
+
+- [OK] (Add test results)
+
+### Status
+
+[OK] **Completed**
+
+### Next Steps
+
+- None - task complete