fix: reconcile durable storage on admission

[iamjr15]

Summary

• Repair production quota failures by reconciling supported Durable Object SQLite schemas before serving an object request.
• Apply the same admission invariant to quota, idempotency, and rate-limit objects so dormant instances cannot retain stale schemas.
• Preserve validated rows transactionally and retain the signed maintenance route for explicit bulk reconciliation.

Architecture

Durable Object admission remains strongly consistent and local. Existing objects first assert the exact current schema; supported predecessors are rebuilt inside one synchronous SQLite transaction, row counts are verified, and any failure rolls back. New objects initialize directly on the current schema.

Decisions Made

Decision	Choice	Reasoning
Migration timing	Lazy on object admission	Covers dormant objects without a fleet-wide ID inventory or a slow release barrier.
State preservation	Validate and rebuild transactionally	Prevents quota, idempotency, or rate-limit data loss.
Bulk maintenance	Keep the closed-gate internal route	Supports explicit verification and future schema contractions.

Test Plan

• pnpm lint
• pnpm typecheck
• pnpm build
• Deploy the merged immutable SHA to the affected Cloudflare Workers.
• Verify /usage and chat run creation directly on production with agent-browser.
• Inspect browser console and production Worker logs for quota/schema errors.

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1 Skipped Deployment

Project	Deployment	Actions	Updated (UTC)
cheatcode	Skipped		Jul 25, 2026 7:46am