LlamaCasty/HANDOFF.md

HANDOFF — Session State

Branch / Commit State

main, dirty working tree being committed as one unit (web source rendering fix — user-confirmed working). NOT pushed — user rule: never push without explicit instruction (2026-08-24). No feature branches pre-1.0: all work lands on main per work unit.

The web-source rendering work (2026-08-28) — CURRENT MODEL: stable viewport + Fill

Background: viewport==box made dragging the box reflow the page (truncation, scrollbars, unrecoverable image, "janky at stressful geometries"). Fixed-viewport + Uniform left letterbox dead space. CSS reset enlarged the gap. Scrollbars were called "super fail".

The model that satisfies invariants (implemented, needs visual verification):

• Services/WebView2Manager.cs — the page renders ONCE at the viewport size the element was created at (snapshot in Register, never tracked → no reflow, no truncation during resize). overflow:hidden (html+body) + transparent-bg injection on every nav — nothing else, no layout/CSS meddling. Immediate capture on NavigationCompleted. FramePump unchanged.
• MainWindow.xaml — web <Image> uses Stretch="Fill": any box the user draws is covered edge-to-edge, zero dead space, zero crop (OBS free-transform: fixed browser resolution, scene-item scales the texture). Aspect distortion only when the box aspect ≠ viewport aspect.
• Invariants: page viewport is stable; display Fill-scales texture to the box.

Build: 0 warnings; tests 4/4 (snapshot at register, no tracking after, min 1, transparent bg).

Rejected for the record: fixed 1920×1080+Uniform (letterbox), CSS margin/100% reset (enlarged gap), viewport==box (reflow/truncation/scrollbars).

Key facts / landmines

• App running locks ytLive.exe → build fails MSB3027 until creator exits the app.
• Startup diagnostics: unhandled exceptions + checkpoints go to %APPDATA%\ytLlive\startup.log (Helpers/AppLog.cs). On a silent startup crash, read that.
• Pre-existing test failures (unrelated to web source, do not chase): AudioPipelineTests.Mix_HonorsProviderGains_AndGameMute_KillsTheLoopback + RoundClipInteractionTests.Round_Clip_Corner_Is_Grabbable_And_Shape_Is_Circle.
• Real-MainWindow tests MUST set LayoutPathOverride — DB pollution wiped real data once.
• Good Dog Rule: ONE integration test per change; no new feature branches pre-1.0.
• Scope Lock: declare the file list, run scripts/scope-check.sh before every commit.
• Every feature change ships memory updates in the SAME commit — TASKS.md status + this file.
• No CODING.md; conventions live in AGENTS.md + ai.md.

Next steps

1. AWAIT creator's verdict on viewport==box (geometry-agnostic) rendering — visual check with a widget URL at several box sizes; the selection frame must snap flush with no padding.
2. Follow-up only if the creator asks: graceful handling of navigation errors / invalid URIs (TASK 17 ×9).
3. Continue queue: TASK 18 local recording, TASK 21 media source, TASK 22 audio sync offset.