v3.0.0 Multi-instance support by migrate database to Cloudflare D1, adding durable object to coordinate proxy pool

What's Changed

• feat: fallback mechanism for commit activity, and few bug fixes by @TongWu in #141
• feat: workflows optimization by @TongWu in #142
• feat: support Cloudflare D1 SQL database, Cloudflare Durable Object for proxy-pool usage in multi-runtime by @TongWu in #143
• refactor: Disable scheduled workflows and optimize D1 operations by @TongWu in #144
• feat: Durable object now support movie claim, login/ban status, failure boardcast, and runner heartbeat persistence by @TongWu in #145

Full Changelog: v2.0.0...v3.0.0