Track Factory Droid usage

[janburzinski]

Summary

• track Factory Droid usage by polling local session snapshots and sending cumulative token deltas
• add summer droid [--dry-run] for manual polling and Droid support in historical backfills
• expose Droid across the shared harness types and dashboard, with coverage for parsing, model resolution, and backfill behavior

Screen recording

https://cap.link/9ek200xkqtxwmvr

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Summary by cubic

Adds live-only tracking for Factory Droid usage. The daemon polls local session snapshots and sends idempotent token deltas; summer droid runs a one-off poll, and the dashboard labels Droid.

• New Features

  • Daemon polls ~/.factory sessions (configurable via FACTORY_DATA_DIR/DROID_DATA_DIR) and sends per-session token deltas; interval via SUMMER_DROID_INTERVAL_MS (default 30s).
  • New summer droid [--dry-run] to preview/send new deltas once.
  • Model/provider inference (e.g., claude-* → anthropic, gpt-* → openai) and billing mode from providerLock (api vs subscription).
  • Added droid to shared types and harness provider map; dashboard label: “Droid”. Tests cover parsing and provider mapping.

• Migration

  • No changes required. Update and run start; Droid usage is tracked automatically.
  • Backfill is not supported for Droid (summer backfill --harness droid errors). Use summer droid --dry-run to preview.
  • If your Droid data lives outside ~/.factory, set FACTORY_DATA_DIR or DROID_DATA_DIR.

^{Written for commit d3375ce. Summary will update on new commits.}