perf(database): adaptive compute offload for large SQL result sets (#522) - #523
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Closes #522
Description
Offloads large SQL query result matrix cell formatting to background isolates via
compute()when result set contains 1,000+ rows. For smaller payloads (< 1,000 rows), preserves in-place yielding (convertResultRowsToStringsYielding) to avoid IPC serialization overhead.Verification
flutter analyze(clean for changed files).flutter test(1,064 tests passed).