fix(read): block v8 score replay

[AsperforMias]

What changes

• Public score reads now accept only canonical v9 rows; v8 cannot appear in profiles, score APIs, search, leaderboards, facets, badges, sitemap inputs, related accounts, repositories, or follows.
• Synchronous quick scan remains the preferred path and materializes v9 before score and roast.
• Verified v5/v5/v3 remains an explicit read-only fallback only after the quick collector fails.
• The MCP score path follows the same rule.

Safety

• No score, roast, or collection version was bumped: runtime remains v9/v9/v4.
• The release guard rejects restoring v8 to the public read order.
• A defensive API test verifies that an accidental v8 detail is never replayed.

Verification

• pnpm test (66 files, 500 tests)
• pnpm typecheck
• pnpm lint
• pnpm versions:check
• pnpm build

[vercel]

@AsperforMias is attempting to deploy a commit to the hikariming's projects Team on Vercel.

A member of the Team first needs to authorize it.