Make calendar-import performance gates deterministic #1286

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timmy merged 1 commits from timmy/1285-calendar-import-performance-gate into main 2026-08-23 00:32:33 +00:00
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Closes #1285

What changed

  • cache validated timezone support and Intl.DateTimeFormat instances per timezone
  • replace host-load-sensitive 1 second assertions with a deterministic formatter-construction budget
  • retain exact daily and weekly historical recurrence result assertions

Verification

  • RED: formatter budget failed at 2,560 constructions
  • focused: 22 passed
  • full suite: 2,411 passed, 12 skipped
Closes #1285 ## What changed - cache validated timezone support and Intl.DateTimeFormat instances per timezone - replace host-load-sensitive 1 second assertions with a deterministic formatter-construction budget - retain exact daily and weekly historical recurrence result assertions ## Verification - RED: formatter budget failed at 2,560 constructions - focused: 22 passed - full suite: 2,411 passed, 12 skipped
timmy added 1 commit 2026-08-23 00:19:50 +00:00
perf: reuse calendar timezone formatters (Closes #1285)
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timmy merged commit 881653eef1 into main 2026-08-23 00:32:33 +00:00
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Reference: stackchain/stackchain-dashboard#1286
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