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feat(FN-5242): add merge queue storage and lease API to task store

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- docs(FN-5242): complete Step 7 — document merge queue storage
- docs(FN-5242): complete Step 5 — add changeset and exports
- fix(FN-5242): order merge queue audit assertions chronologically
- test(FN-5242): complete Step 4 — cover merge queue leasing
- feat(FN-5242): complete Step 2 — add merge queue lease API
- feat(FN-5242): complete Step 1 — add mergeQueue schema v89

Fusion-Task-Id: FN-5242
This commit is contained in:
Fusion (runfusion.ai)
2026-05-19 21:14:49 -07:00
committed by gsxdsm
parent 17eb85ed81
commit 6b24b56b81
15 changed files with 636 additions and 42 deletions
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docs/storage.md
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@@ -141,7 +141,7 @@ Important execution nuance:
- **Backend settings keys defined in `@fusion/core`:** **78** total
- **Global settings:** 17 (`GlobalSettings`)
- **Project settings:** 61 (`ProjectSettings`)
- **SQLite tables in project DB schema (`packages/core/src/db.ts`):** **45** (including migration-created tables)
- **SQLite tables in project DB schema (`packages/core/src/db.ts`):** **46** (including migration-created tables)
- **Issues identified:** **9**
- High: 2
- Medium: 5
@@ -309,6 +309,7 @@ Additional backend notes:
| Table | Purpose |
|---|---|
| `tasks` | Core task metadata and JSON-backed nested fields (priority, dependencies, steps, log, attachments, comments, model overrides, workflow results, merge details, assignment, mission linkage). |
| `mergeQueue` | Durable merge handoff queue keyed by `taskId`. Stores enqueue ordering (`enqueuedAt`, mirrored `priority`), single-owner lease state (`leasedBy`, `leasedAt`, `leaseExpiresAt`), and retry diagnostics (`attemptCount`, `lastError`). Leasing is priority-first + FIFO within priority, and expired leases are recoverable without incrementing attempts. FN-5242 adds the persistence/lease primitive; FN-5241 and FN-5243 wire executor enqueue + merger consumption. |
The `tasks.githubTracking` JSON column stores per-task GitHub tracking state (`enabled`, optional `repoOverride`, linked issue metadata, and `unlinkedAt`). It is additive and default-off; imported-source issue metadata remains in `issueInfo` / `sourceIssue`. Behavior wiring (issue creation/lifecycle sync and UI surfacing) lands in FN-3870/FN-3873/FN-3874.
| `config` | Single-row project configuration (`nextId`, settings payload, workflow step counters). |