Add server-rendered Remix hydration

[kentcdodds]

Summary

• Render the Remix app document on the server with an AppRoot client entry for hydration.
• Add SSR-aware route location context and route-pattern matching for client navigation.
• Serve direct page routes through the same SSR path, including reset-password, account, and OAuth pages.
• Add route-keyed loader data for account, chat, and OAuth authorize pages, with SSR embedding, SPA preload consumption, stale markers, and post-mutation revalidation.
• Fold in the Kody PR #664/#666 fix class: successful route-loader consumption now schedules a corrective render so values derived before consumption cannot persist stale.
• Share and refresh the embedded session with routed content so account, OAuth, and logout revalidation stay aligned with the authenticated nav.
• Render OAuth authorize query errors during SSR and preserve them through hydration.
• Pass CLOUDFLARE_ACCOUNT_ID from repository variables/secrets into Cloudflare preview and deploy jobs so Wrangler can select the intended account in non-interactive CI.

Walkthrough

Testing

• bunx vitest run --config vitest-unit.config.ts server/loader-data-context.test.ts
• bunx vitest run --config vitest-unit.config.ts server/ssr-render.test.ts
• bun run test:unit
• bun run typecheck
• bun run lint
• bun run build
• bun run test:e2e
• Manual browser walkthrough covering signup/account SSR loader data, account reload, chat create/delete revalidation, and logout session revalidation.

  

[github-actions]

🔎 Preview deployed: https://epicflare-pr-76.kentcdodds.workers.dev

Worker: epicflare-pr-76
D1: epicflare-pr-76-db
KV: epicflare-pr-76-oauth-kv

Mocks:

• ai: https://epicflare-pr-76-mock-ai.kentcdodds.workers.dev/__mocks (epicflare-pr-76-mock-ai)
• resend: https://epicflare-pr-76-mock-resend.kentcdodds.workers.dev/__mocks (epicflare-pr-76-mock-resend)

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