fix(runtime-host): serve revision-consistent Usage snapshots

[Sun-GLiang]

Summary

• capture legacy telemetry, canonical model-call attempts, tool activity, and pricing in one repaired SQLite snapshot
• add opaque revision-pinned Usage snapshot pages with bounded TTL, LRU retention, activity caps, and typed revision changes
• make Desktop load all Usage authorities as one unit with strict page validation and three bounded full retries
• raise the Runtime Host compatibility epoch to 60 and cover old peers, Host replacement, and two-client UDS behavior

Reuse

• reuses the existing Usage merge and projection paths
• shares the existing 48 KiB bounded-page fitter across legacy Usage, pricing, and snapshot pages
• keeps the existing reconnectable IPC replacement window and renderer/preload interface

Verification

• npm test --workspace @maka/storage
• npm test --workspace @maka/runtime-host
• npm test --workspace @maka/desktop
• npm run typecheck
• npm run format:check
• npm run lint

Fixes #4058