Fix durable relay dispatch lifecycle

[miyaontherelay]

Depends on #91

Fixes #85

Summary

• make relay dispatch run under a durable dispatch-owner lifecycle that stays alive through placement, publication, writeback, cleanup, and human review
• persist fenced owner/epoch leases, complete tracked placement state, spawn intents, deterministic per-run branch/invocation identity, publication receipts, and release checkpoints
• recover running, queued, publishing, parking, and waiting-for-human lifecycles autonomously after process crashes or lease expiry without duplicate spawn/publication or leaked batch capacity
• publish remote work from its pushed GitHub head ref, validate the mounted PR is open, non-draft, and on the expected head, then apply terminal writeback
• preserve relay node/repo/clonePath locality on resume and never signal relay-node PIDs as local processes

Supported topology

Durable ownership and global batch capacity are fenced across multiple control-plane processes on one host when they share the same FileStateStore. Active/active control-plane ownership across different hosts is intentionally unsupported because the current system has no cross-host shared compare-and-set store. Relay execution nodes do not require access to the control-plane state directory.

Validation

• focused lifecycle/CLI/state/mount/fleet tests: 371/371 passed
• full npm test: 38 files, 765/765 passed
• npm run build: passed
• npm pack --dry-run --json: passed, 258 package entries with required CLI, factory, FileStateStore, GitHub writer, and state artifacts
• git diff --check: passed
• package-lock unchanged

The implementation is stacked on the exact #91 head 666825a; #91 supplies repo forwarding for normal and restart placement paths.

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 38d1f1e5-94ff-46f2-8e96-f43dee789b7b

📥 Commits

Reviewing files that changed from the base of the PR and between bb760f2 and de287dd.

📒 Files selected for processing (20)

• README.md
• src/cli/fleet.test.ts
• src/cli/fleet.ts
• src/dispatch/templates.ts
• src/fleet/internal-fleet-client.ts
• src/fleet/relay-fleet-client.test.ts
• src/fleet/relay-fleet-client.ts
• src/mount/relayfile-github-connection-write.test.ts
• src/mount/relayfile-github-connection-write.ts
• src/orchestrator/batch-tracker.ts
• src/orchestrator/factory.test.ts
• src/orchestrator/factory.ts
• src/ports/fleet.ts
• src/ports/mount.ts
• src/ports/state.ts
• src/state/file-state-store.test.ts
• src/state/file-state-store.ts
• src/state/in-memory-state-store.ts
• src/testing/fakes.ts
• src/types.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/issue-85-relay-lifecycle

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