2.7 KiB
Phase 3 report
Shipped on codex/phase3: plan 895f20a; contract synchronization f804a23;
pinned loader 4853c2c; server embedding d98d444; integration 5d6a154;
review fixes ccfb7d9 through fab444b; browser verification/results b840505.
The CSP-safe external head loader reads saved appearance before body creation. Modern clients block core plus their active layout/dependencies; Settings loads before switching and saves immediately. Imported settings also report their layout. Shared markup visibility remains eager. Rare features, stats/export and layout scripts load on intent; playlist/settings/service mode/lyrics editor remain in RAM. Idle warming honours Save-Data and shares one six-download pool across tabs. Legacy migration blocks all layouts because old pages cannot report selection. P2P/direct preserve eight-second startup; EQ metadata/DeviceDB stay eager.
Accepted decision: executing groups stay pinned until a playback-guarded user reload. Unexecuted groups use newer cached URLs only with matching core/dependency contracts; otherwise retain N-1, mark reload-required and request the existing Refresh UI banner. Changed contracts block activation. Phase 4 must supply state disposal/handoff before live replacement; app.js splitting remains there.
Verification: 190 frontend/183 server tests, no skips. Chromium/WebKit pass warmed
feature first-use with zero network, offline layouts, pre-body selection,
Settings search/extensions, Car controls, imported appearance, stale fallback,
contract/pinning guards and playback protection. Actual b77938a migration passes
both proxy profiles: one user-initiated reload/banner, N-1 tab and offline boot.
Both rollback flags pass offline checks.
Reduced one-run LTE, Chromium/WebKit (phase3-final-2026-10-08.json): initial compressed JS/CSS
221,307/274,813 bytes versus reconstructed Phase 0 276,414/338,940 (−19.9%/−18.9%).
Historical Phase 0 boot 10,480/3,290 ms becomes 7,193/3,293; warm 419/81;
offline 166/84. FCP 1,356/2,467 versus 1,572/1,100: WebKit first paint regresses,
so the paint target remains unmet despite bootstrap/preload reordering. Core JS
updates transfer 159,905/194,026 bytes; inactive CSS readiness 29,724/28,082,
with that CSS downloaded after activation. Warm counters include idle downloads.
WebKit still duplicates cold app transfer; repeated medians await Phase 5.
Workers/importScripts/WASM, piano engine and F7 now use hashed URLs; fonts/icons/ webmanifest remain plain and cached (exact matrix in perf/README.md). External piano model downloads remain on request. Owner iPhone checks: installed/offline layouts, feature first-use, update guard/override, locked playback 30 minutes, OPFS/quota coexistence. No deployment.