fix(prism): stop control-plane OOM restarts

[echobt]

Summary

• Slim GET /v1/submissions / reconcile list SQL so we no longer load tree_blob + full scripts + telemetry for hundreds of rows (this OOM-killed prism-challenge on the 16 GiB prod master and batched control_plane_restart requeues).
• claim_next prefers queued rows that already have a pod_id so mid-flight resume is not pushed behind new submits (and workers reattach instead of a second lium rent).

Test plan

• cargo test -p prism-store -p prism-orphan claim/reconcile cases
• cargo clippy -p db -p prism-store -p prism-orphan -p prism-challenge --all-targets -- -D warnings
• After merge: CI green on main, staging pins, prod tag v*.*.*
• Prod: prism-challenge RSS stays well below host RAM; no batched control_plane_restart; no new lium rent for rows that already have a RUNNING pod_id

Summary by CodeRabbit

• New Features

  • Improved recovery of interrupted evaluations by prioritizing submissions that can reconnect to existing running pods.
  • Orphan reconciliation now preserves live pods and requeues resumable evaluations without provisioning replacements.

• Performance

  • Submission listings load faster by omitting large source files and telemetry data.
  • Champion views use slimmer data projections for more efficient retrieval.

• Tests

  • Added coverage verifying resumed submissions are claimed before new submissions while retaining their existing pod assignments.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 436ac33d-8833-4682-9f27-34dca0f84623

📥 Commits

Reviewing files that changed from the base of the PR and between a9632b3 and b47828a.

📒 Files selected for processing (5)

• crates/db/src/prism_store.rs
• crates/prism-challenge/src/orchestrator.rs
• crates/prism-orphan/src/lib.rs
• crates/prism-store/src/store.rs
• docs/PRISM.md

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📝 Walkthrough

Walkthrough

Prism listing queries now use slim projections. Queue claiming prioritizes submissions with retained pod IDs. Orphan reconciliation and measurement preserve pod reattachment, with tests and documentation updated.

Changes

Prism resume and query behavior

Layer / File(s)	Summary
Slim listing and champion projections crates/db/src/prism_store.rs	Listing queries omit heavy source and review data. Champion queries retain architecture and review data while reducing other payloads.
Retained-pod queue priority crates/db/src/prism_store.rs, crates/prism-store/src/store.rs	Database and in-memory claims select queued rows with existing pod_id values before new rows, while preserving FIFO order within each group. Tests verify the ordering.
Resume reattachment flow crates/prism-challenge/src/orchestrator.rs, crates/prism-orphan/src/lib.rs, docs/PRISM.md	Comments, documentation, and orphan reconciliation tests describe and verify retained-pod reattachment.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Sequence Diagram(s)

sequenceDiagram
  participant OrphanReconciliation
  participant PrismStore
  participant PrismChallenge
  participant RetainedPod
  OrphanReconciliation->>PrismStore: claim_next queued row
  PrismStore-->>OrphanReconciliation: resumed row with pod_id
  OrphanReconciliation->>PrismChallenge: measure resumed submission
  PrismChallenge->>RetainedPod: reattach using pod_id

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Possibly related PRs

• BaseIntelligence/base#91: This PR refines the champion listing projection introduced by PR #91.
• BaseIntelligence/base#140: This PR extends the mid-flight resume support from PR #140 with queue prioritization and reattachment handling.
• BaseIntelligence/base#88: Both PRs modify Prism orphan-reconciliation behavior.

✨ Finishing Touches 💡 1

🛠️ Fix failing CI checks 💡

• Create stacked PR
• Commit on current branch

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/prism-control-plane-oom

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