feat: ship connected publishing and Cloud billing

[starc007]

What changed

• rebuild publishing around content-addressed releases that bundle linked pages and hosted images
• render linked public pages through nested routes with improved Markdown parity
• add Dodo monthly/yearly checkout sessions, signed webhook handling, entitlement sync, and customer billing portal access
• add a secure one-time desktop-to-web billing handoff instead of exposing account credentials in the browser
• replace the website login route with a compact Markd Cloud pricing page and purchase flow
• separate OTP rate limiting from retained authentication records and clean up expired data
• add semantic status badges and refine Cloud subscription states in the desktop app

Why

Publishing a single isolated note did not preserve connected-note navigation or local images, and paid Cloud access had no production billing lifecycle. This change makes a published note behave as a connected site while keeping uploads deduplicated and tying access to verified subscription events.

Impact

• users can publish a note together with its linked pages and images
• monthly and yearly subscriptions unlock Cloud publishing through Dodo
• renewals, cancellations, expiry, and payment failures update access automatically
• existing public-note URLs continue to resolve while nested linked pages gain stable routes

Validation

• services/cloud-api: bun run typecheck
• services/cloud-api: bun test — 14 passed
• desktop frontend: bunx tsc --noEmit
• website: bunx tsc --noEmit
• Rust: cargo test — 49 passed

No build command was run.

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Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	markd-api	18bb2a5	Jul 18 2026, 05:31 PM