# Journal - dingkang (Part 1)

> AI development session journal
> Started: 2026-08-26

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## Session 1: Complete direct edit document and revision foundation

**Date**: 2026-08-27
**Task**: Complete direct edit document and revision foundation
**Branch**: `feat/direct-edit-documents`

### Summary

Completed the v2 direct-edit document, immutable revision storage, and area-config snapshot foundation.

### Main Changes

- Added validated native-road-edits/v2 documents, revisions, content-addressed OSM, and snapshot-only compilation.

### Git Commits

| Hash | Message |
|------|---------|
| `93f09e3` | (see git log) |
| `3500237` | (see git log) |
| `c0c8a16` | (see git log) |
| `ba8eaba` | (see git log) |

### Testing

- [OK] npm run format:check; npm run test; npm run test:client; npm run test:client:unit; npm run build

### Status

[OK] **Completed**

### Next Steps

- Start the direct-edit solver and API child task.

## Session 2: Direct-edit handle manifest

**Date**: 2026-08-27
**Task**: Continue `direct-edit-solver-api`, step 2
**Git Commit**: `ab63d23`

### Summary

Added junction reserve calculation, six-kind handle manifest generation, and
shared native feature ID builders. The solver remains pure and empty documents
remain an identity transform for compiled geometry.

### Testing

- [OK] npm test; npm run format:check; npm run test:client; npm run test:client:unit; npm run build

### Next Steps

- Implement the six constraint kinds and invariant diagnostics (step 3).

## Session 3: Direct-edit constraint solving

**Date**: 2026-08-27
**Task**: Continue `direct-edit-solver-api`, step 3
**Git Commit**: `0eb404d`

### Summary

Activated all six constraint kinds, added transactional validation and blocking
diagnostics, and wired road profiles and junction plans into geometry compilation.

### Testing

- [OK] npm test; npm run format:check; npm run test:client; npm run test:client:unit; npm run build

### Next Steps

- Implement exact/recheck/pending/conflicted/stale replay matching (step 4).

## Session 4: Direct-edit replay matching

**Date**: 2026-08-27
**Task**: Continue `direct-edit-solver-api`, step 4
**Git Commit**: `735ce69`

### Summary

Added exact-anchor replay classification, snapshot candidate fallback, stale
lane-boundary handling, and compiler-geometry `recheck` propagation.

### Testing

- [OK] npm test; npm run format:check; npm run test:client; npm run test:client:unit; npm run build

### Next Steps

- Add the read-only edit-state and edit-preview endpoints (step 5).

## Session 5: Read-only edit APIs

**Date**: 2026-08-27
**Task**: Continue `direct-edit-solver-api`, step 5
**Git Commit**: `41c314f`

### Summary

Added `GET /api/edit-state` and `POST /api/edit-preview`. Preview compiles from
the draft document without writing active files and returns sequence, degraded
status, diagnostics, handles, and derived layers.

### Testing

- [OK] npm test; npm run format:check; npm run test:client; npm run test:client:unit; npm run build

### Next Steps

- Implement edit/revision/rebase writes with expected-version protection (step 6).

## Session 6: Edit persistence and rebase APIs

**Date**: 2026-08-27
**Task**: Complete `direct-edit-solver-api`, step 6
**Git Commit**: `f3f763f`

### Summary

Added atomic active-document saves with expected-version 409 protection,
revision checkpoint creation, and read-only revision rebase status summaries.
Existing state/session responses now expose active revision and document version.

### Testing

- [OK] npm test; npm run format:check; npm run test:client; npm run test:client:unit; npm run build

### Next Steps

- Run the solver-api quality review, then archive the child task before starting
  the map-editor child task.