Add signed opaque pagination cursor#1607
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kryputh merged 1 commit intoJul 20, 2026
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Goal
Implement a versioned, signed opaque pagination cursor so clients cannot tamper with continuation position, actor scope, filters, or ordering (issue #1490).
Changes
src/server/api/pagination.ts(new):encodeCursor/decodeCursorencode the full continuation key + query scope into a versioned, HMAC-signed opaque cursor. Tampered cursors are rejected, cursors are bound to actor and query scope, and versions are explicit. Secret values are never logged.tests/unit/api/pagination-cursor.test.ts: round-trip, tampered-cursor rejection, cross-actor reuse rejection, scope/filter mismatch rejection, and malformed-structure rejection.Verification
npx vitest run tests/unit/api/pagination-cursor.test.ts→ 5 passed.npx prettier@3.8.5 --checkclean on changed files.Fixes #1490