Add directional experiment archiving in CLI and dashboard

[sox8502]

Summary

• Add exclusive archive and restore scopes for ancestors, the selected experiment, and descendants in both the CLI and dashboard.
• Hide archived experiments in the graph behind a compact region marker with a direct restore action; put Show archived in the experiment filter.
• Preserve archived experiments, runs, logs, and code for inspection.

Checks

• cargo fmt --all --check, cargo clippy --all-targets -- -D warnings, cargo build --locked, cargo test --locked
• pnpm build in ui/; regenerated ui/dist
• Tried all three graph archive scopes, region restore, archived visibility, and archived-node actions in the isolated dev slot
• Verified CLI help requires exactly one scope and rejects the removed --down option
• User functionality check on the final reviewed revision

[greptile-apps]

Confidence Score: 5/5

[Medium risk] Adds experiment archiving feature to CLI and dashboard.

The PR appears safe to merge based on the reviewed changes.

Summary

The PR adds directional experiment archiving and restoration to the CLI and dashboard, while keeping archived data available for inspection.

• Archived graph regions collapse into restoreable pills, and the experiment filter controls archived visibility.
• The latest revision limits task-scoped pill restoration to experiments from the represented task and broadens accepted arXiv citation forms.

Diagram

%%{init: {'theme': 'neutral'}}%%
flowchart LR
  A[Experiment tree] --> B{Show archived?}
  B -- Yes --> C[Show experiment cards]
  B -- No --> D[Collapse contiguous archived region into pill]
  D --> E{Scope}
  E -- Current task --> F[Restore task region]
  E -- Entire project --> G[Restore project region]

Loading

_{Reviews (6) · Last reviewed commit: "Merge remote-tracking branch 'origin/mai..."}

[sox8502]

@greptileai review

[sox8502]

@greptileai review

[sox8502]

@greptileai review

[sox8502]

@greptileai review

[sox8502]

@greptileai review