feat(server): persist & backfill v1_hash on filters table#354

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mpecan wants to merge 3 commits intofeat/350-canonical-v1from

feat/350-canonical-v1-backfill

Commits on Apr 29, 2026

feat(server): persist & backfill v1_hash on filters table

mpecan
and
claude
committed
fix(server): correct v1-collision response and tighten coverage

mpecan
and
claude
committed
refactor(server): simplify per /simplify review

mpecan
and
claude
committed