# HANDOFF — 2026-09-25 (TASK 44 shipped: TEST-tab chat fix — liveChatId now resolves)

## Branch / Commit State

`main` HEAD = new commit for TASK 44 (TEST-tab chat fix); previous: TASK 43 commit (native
events & alerts), `ac6e67a` (end close-out). Repo is ~11 commits ahead of pushed `197ee81` —
**push is the creator's call** (sub-milestone decision, not per-commit).

**Working tree CLEAN after this unit's commit.**

## ⚠️ The unit that just shipped (the open TEST-tab chat report, diagnosed + fixed)

The HANDOFF-open creator report — *"I still cannot post a chat message in the TEST tab"* —
is **RESOLVED** (one cause, one scoped unit, TASK 44 in `TASKS/task-44-test-chat-fix.md`):

- **The feedback line** "Chat polling couldn't start — Mock Chat Input is disabled" is
  `TestSessionViewModel.BeginTest` running with a **null liveChatId**.
- **Root cause (two API facts, cited in commit + MyMistakes):** (1) `liveChatId` lives in
  **`snippet.liveChatId`** — `contentDetails` has no such property, and the old code read
  `part=contentDetails` (can NEVER resolve); (2) YouTube only populates it once the broadcast
  is **live** (official `GetLiveChatId.java` lists `broadcastStatus=active`), and the fetch
  ran before the frame pump pushed RTMP (enableAutoStart flips ready→live).
- **Fix:** `GetBroadcastLiveChatIdAsync(broadcastId, maxAttempts=10, delayMs=2000)` now reads
  `part=snippet` and polls with a bounded retry; `PrepareAndStartLiveAsync` starts the frame
  pump FIRST, then resolves the id. Chat stays non-fatal. TEST drawer wiring unchanged
  (`BeginTest` opens the dock once the id resolves → Mock Chat Input becomes sendable).

**Good Dog:** ONE integration test in `YouTubeStreamServiceTests.cs`
(`GetBroadcastLiveChatIdAsync_Polls_Snippet_Until_Id_Appears`) — a fake broadcast that starts
without a liveChatId and gains it on a later poll; asserts the retry resolves it, polled ≥3x,
and every request asked for snippet (never contentDetails). **Gate: clean build 0 warnings,
full vstest 318/318 passed** (the LayerReorder real-mouse-drag test passed this run too).

## Follow-ups queued (NOT done in this unit)

- **TASK 3 item 20 persistence half** — the canonical `RewardEvents` SQLite table +
  `superChatEvents.list` (30-day) backfill + session-report rollup (events still parse to
  `ChatMessage` in memory only).
- TASK 3 item 16 (Text source) still open; TASK 40 units A/C/D queued; TASK 32–36 queued.

## Around the task (carried facts)

- RealMouseDrag tests no-op while a game/fullscreen window steals the mouse (POE 2 seen
  2026-09-22) — close games before full-suite runs. AudioPipeline timing flake similar.
- Test-env trap: saved OAuth session loads synchronously → force `vm.IsConnected` in signed-in tests.
- `subscriberCount` YPP slice 2 needs re-consent — do not merge with other units. `$99/yr` Polar
  must become one-time before launch. `MARCOM.md`/`MONETIZATION.md` gitignored — never commit.
- Latent bug the YPP 403 masked: statistics are JSON **strings** — always the ValueKind-first
  `ReadInt64` (MyMistakes recipe), never `GetInt64`.
- **API fact (TASK 44):** a liveChatId fetch at insert time (lifecycleStatus `ready`) returns
  nothing by design — missing liveChatId ≈ "broadcast not live yet", not an auth failure,
  until ~20s post push. Debug with that lens.
- Every committed change needs a **close + relaunch** of the running app to be seen — running
  builds are live; verify.sh can't run while the exe is locked.

## Next step

1. **Creator verifies the TEST-tab chat fix on the next run**: Test Stream → the drawer should
   open with a liveChatId line and Mock Chat Input enabled ~as soon as the broadcast goes live;
   send a message and confirm it round-trips through the ~2s poll and renders on the overlay.
2. Push decision is the creator's (repo ~11 ahead). If pushed, note the commit id in this file.
3. When scoped: TASK 3 item 20 (RewardEvents persistence half) draws next.

## Critical working rules (unchanged, still binding)

- **Good Dog = ONE integration test per change.** Scope lock + `./scripts/scope-check.sh` before commit.
- Windows dotnet host for all WSL builds (`/mnt/c/Program Files/dotnet/dotnet.exe`, quoted paths).
- 0 warnings on real clean builds (verify.sh only, never incremental). One runtime model.
- No menus/polls with the creator; decisions asked once then held; do the work, then report.