55009a429d
partial.json 3/24 -> 24/24, hashed.json still 0/18. PLAN §6 records the planner rule that is deliberately left conservative -- a partial index is maintained and enforces `unique`, and reads scan until the implication test exists. Full matrix at this commit: 250/250 unit tests in ReleaseFast and ReleaseSafe, 83/83 fuzz, operators 125/0, positional 51/0, aggregation 70/0, pinned crud 228/63/196, e2e and crash-fuzz green.