Add: Job lifecycle management and persistence

[FL4TLiN3]

Background

In #78, the Job schema was added but the actual persistence and lifecycle management is not implemented yet. Currently:

• jobId is passed through Run/Checkpoint/Event
• Storage structure uses perstack/jobs/{jobId}/runs/{runId}/
• But no job.json is created or managed

Proposed Implementation

Job Persistence

• Create job.json when a new Job starts
• Update job.json on each Run completion

Job Lifecycle

• Track totalSteps (sum of all Run stepNumbers)
• Enforce maxSteps at Job level
• Update status based on Run outcomes

File Structure

perstack/jobs/{jobId}/
├── job.json          # Job metadata (NEW)
└── runs/{runId}/
    ├── setting.json
    ├── checkpoints/
    └── events/

Acceptance Criteria

• Implement storeJob and retrieveJob functions
• Create job.json on perstack run (new Job)
• Update job.json on Run completion
• Track and enforce totalSteps / maxSteps at Job level
• Add --max-steps option that applies to Job (not Run)

[github-actions]

🤖 Processing...

✅ Done
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[FL4TLiN3]

Implemented in PR #83:

• storeJob and retrieveJob functions in job-store.ts
• Job lifecycle management in runtime
• totalSteps and usage tracking at Job level
• Storage structure: perstack/jobs/{jobId}/job.json