Chunk 12.0

## Summary **Current chunk tasks focused on three major areas:** diagnosing the stalled deal flow (CIDgravity API timeouts preventing new Filecoin deals), cleaning up legacy Lassie/Graphsync retrieval code, and enabling HTTP-only repair workers with supporting infrastructure changes. **Key achievements included:** removing the Lassie dependency from `go.mod` and all source files (eliminating ~100 lines of dead code in `retr_checker.go`, `retr_provider.go`, and `deal_repair.go`); rewriting `deal_repair.go` to implement HTTP-only group retrieval from storage providers with PieceCID verification; adding `startRepairWorkers()` to the startup path in `ribs.go`; extending the Ansible role with `RIBS_REPAIR_WORKERS`, `RIBS_REPAIR_STAGING_PATH`, and a dedicated directory creation task; deploying the new binary to both kuri nodes; and confirming the CIDgravity API responds correctly when using the `X-API-KEY` header with a test timeout of ~2.6s. **Remaining issues:** the CIDgravity `get-on-chain-deals` call is still timing out in production (the HTTP client uses a 30s timeout, but the full response takes ~110–160s), and the repair staging path default (`/data/repair-staging`) points outside the writable `/data/fgw/` partition, causing a startup error that needs a config override. The user should update `RIBS_REPAIR_STAGING_PATH` to `/data/fgw/repair-staging` and either increase the CIDgravity client timeout or investigate why the API response takes so long.

The Three Threads of a Distributed Storage Debugging Session: Lassie Removal, Repair Workers, and CIDgravity Timeouts 2168 words

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