Remove completed migration and snapshot scaffolding

[naaiyy]

What changed

• Removed the completed Quick Links v1 storage migration and its application migration helpers after validating retained data.
• Removed unused snapshot mutation and AI workspace assertion scaffolding while preserving active fingerprint computation.
• Regenerated Convex bindings and removed the obsolete migration package export.
• Kept focused fingerprint regression coverage.

Data verification

Read-only Convex checks found no remaining Quick Links v1 payloads:

• Dev: 485 contentPayloads, 0 remaining v1 documents, 0 parse failures.
• Production: 2,690 contentPayloads, 0 remaining v1 documents, 0 parse failures.

No migration or database write was run. Convex codegen refreshed bindings against the configured dev deployment; production was not deployed or modified.

Validation

• Backend: 176 tests passed.
• Custom blocks: 21 tests passed.
• OpenEditor contracts: 12 tests passed.
• Backend, custom blocks, and contracts type checks passed.
• Targeted Biome and diff checks passed.

[vercel]

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Project	Deployment	Actions	Updated
base-blocks	Ready	Preview	Sep 7, 2026 3:31am UTC

[github-actions]

React Doctor found no new issues. 🎉

_{Reviewed by React Doctor for commit 559439a.}