feat: add governed pet reaction stickers

[Railly]

Summary

• add a hash-bound sticker export approval and publication ledger
• seed the curated system-owned Claude reaction collection
• publish 55 objects per pet: 36 web reactions, 18 WhatsApp-profile animated WebPs, and one 96px tray icon
• enforce WhatsApp media compliance at generation time: animated WebP, exact 512x512, at most 500 KB, at least 8 ms per frame, and at most 10 seconds total
• add clean and outlined treatments plus a local review generator
• add the localized collection reaction explorer with canonical URLs, URL-synced state, and shareable decks
• gate access, navigation, and pet detail entrypoints behind current approval and publication state
• make publication transactional, versioned, purge-safe, and recoverable

WhatsApp scope

This PR downloads one WhatsApp-ready reaction at a time. It does not generate or advertise an installable .wastickers pack. Legacy pack keys and routes remain only for cleanup and 410 Gone behavior.

Rollout

1. Apply drizzle/0018_sticker_exports.sql with scripts/apply-sticker-exports.ts.
2. Review and allow pets from the companion admin PR.
3. Run bun run stickers:snapshot:apply --artifacts=reactions --collection=claude.
4. Enable STICKER_EXPLORER_ENABLED=1.
5. Use STICKER_EXPORT_DISABLED=1 as the immediate kill switch.

Companion admin PR: https://github.com/crafter-station/petdex-admin/pull/4

Validation

• head SHA: d4a7f01ba169a053c27eb828ee15d47b08fc7fdc
• bun test --env-file=.env.mock: 372 passing
• bun run i18n:check
• Biome clean for every tracked PR file
• Vercel preview and required GitHub checks green on the head SHA
• latest-SHA OpenCode gate: NO ACTIONABLE FINDINGS
• real Claude Crab generation: 18 WhatsApp WebPs at 512x512, 4 to 8 frames, 720 to 1200 ms, 23,076 to 101,266 bytes, all frames at least 8 ms; tray 96x96 and 8,316 bytes

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
petdex	Ready	Preview	Aug 3, 2026 4:25pm

[Railly]

Companion admin review and revocation PR: https://github.com/crafter-station/petdex-admin/pull/4