PERF.6 Performance budget in the test suite: startup requests/bytes/time per app and DWG/IFC read-write times, logged per release

tools/perf/startup.mjs and tools/perf/io-bench.mjs (added 2026-11-08) measure a cold /use start per app and the engines on big files. Plan: run both at each release (bin/release-app.php or the release checklist), store the numbers in docs/releases/<x.y>.md's results section (rule: test results in release notes) and fail the smoke run when an app's request count or JS bytes grow more than 15 % over the last release without a note. Baseline 2026-11-08 in docs/0.9-sessions/perf-09.md. cc-ifc needs no work now: 22.5 MB opens in 76 ms, geometry 1.3 s (683k triangles), save 30 ms; 47 MB Schependomlaan (714k lines) opens in 411 ms, geometry 641 ms, save 743 ms.