- measureCase sampling loop now pairs mark(startTag)/mark(endTag) with
measure(measureName, startTag, endTag) and clears marks/measures per sample
- tag names derive from caseName+scale so they never collide across cases
- WARMUP_RUNS/SAMPLE_RUNS/median/min/p95/toFixed(3)/columns unchanged
- expand COMPRESSIONS to NoCompression / LowCompression / HighCompression so the matrix is 3 map counts x 3 compressions x 3 timing items = 27 rows
- keep measureCase, fixture build order, side load and 06-16 files untouched; still zero assertions
- one full run: 5 perf files / 45 tests passed, 0 WARNING/ERROR codes, saveablesReal.perf.ts (27 tests) in 379ms -- no case approaches the 30000ms testTimeout
- move root floors.json into packages-user/data-state/test/fixtures/ (byte-identical) and delete the root copy
- add saveablesReal.perf.ts: toFlat/clearCodes/registerTiles/createRealMapFixture with a one-shot compareWith baseline
- seed the minimum 1 equipment instance so HeroEquipsStore.loadState does not raise error 58
- 3 rows: save / load / round trip for 1 map x NoCompression, zero assertions