fix(db): optimize Project backfill and repair archived workflows

[mzxchandra]

Summary

• Keep healthy Project backfill batches at 200 new-Project singletons or 50 existing-Project singletons; process fork families atomically. Remove elapsed-time batch shrinking and the pause after successful batches.

• Bulk-load existing Project evidence with indexed membership lookups and combine timeout/validation queries to reduce database round trips.

• Remove the outer 20-minute and 10,000-batch scheduling caps. Preserve transaction timeouts, bounded contention retries, authority/constraint guards, and resumable completion receipts for the existing migration.

• Automatically archive workflows left active inside archived workspaces, disabling their dependent records in a bounded transaction. Preserve existing archive timestamps and the provider-cleanup guard.

Type of Change

• Bug fix

Testing

• 72 focused PostgreSQL integration tests, including partial-progress retry, bulk evidence for distinct/shared Projects, automatic archive repair, rollback, timestamp preservation, provider-cleanup refusal, and temporary/persistent advisory-lock contention.
• Synthetic database-latency benchmarks verify preserved identities, replay, final constraints, and zero invariant violations.
• Targeted Biome and git diff checks. Full repository checks run in hosted CI.

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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Project	Deployment	Actions	Updated
docs	Ready	Preview	Oct 13, 2026 5:52am UTC

[mzxchandra]

@greptile

[mzxchandra]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

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[cubic-dev-ai]

No issues found across 4 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

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[greptile-apps]

Confidence Score: 5/5

[Critical impact] The PR appears safe to merge; the previous repair-retry issue is fixed and no new actionable issues were found.

Summary

This PR increases backfill batches, bulk-loads existing Project evidence, and automatically archives active workflows inside archived workspaces.

• New Project families now move in larger batches.
• Archived workspaces now archive workflows still marked active.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart TD
  A[Discover Project backfill] --> B{Archive repairs needed?}
  B -- Yes --> C[Repair workflows in bounded transactions]
  C --> D{Repair lock busy?}
  D -- Yes --> E{Attempts remain?}
  E -- Yes --> C
  E -- No --> F[Stop without completion receipt]
  D -- No --> G[Rediscover]
  G --> H[Assign Project batches]
  B -- No --> H
  H --> I[Verify and enforce membership]
  I --> J[Record completion]

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_{Reviews (3) · Last reviewed commit: "fix(db): retry busy Project archive repa..." · Reviewed by Greptile}

[mzxchandra]

@greptile

[mzxchandra]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@mzxchandra I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 4 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Heads up: you’ve reached your flex budget. Increase your flex budget or wait for usage to reset.

Turn on auto-fix | Re-trigger cubic</sub>