TASK 4 ship step 6: health stats land in the bottom bar — FramePump.HealthUpdated is now wired to the VM (OnFramePumpHealthUpdated marshals onto the UI thread — the encoder's stderr loop raises on a background thread — and copies the parsed bitrate/FPS/dropped/duration into CurrentHealth, the bottom bar's existing binding); ResetHealth zeroes dropped frames + elapsed duration on go-live and on End so stats never linger from a previous session (bitrate/FPS stay on the tier's targets); the bar shows real encoder values once TASK 5 fills _rtmpUrlProvider (until then the pump skips the encoder) — 169 tests passing, 0 warnings

HANDOFF.md

@@ -7,36 +7,32 @@
 
 ## Session state (last updated: 2026-08-13)
 
-- **Branch:** `main`. The audio UX follow-up (`9f9ed34`) and round 2 (`18abe42`)
-  are **committed and pushed**.
-- **This session (round 3 — mic mute icon + REC sign):**
-  1. **Mic mute icon:** the mic bar gained a **microphone glyph** (same 16px style
-     as the speaker, white → red + slash when muted, `ToolTip=MicMuteText`)
-     **between the meter and the speaker** — both mutes adjacent with spacing
-     between the icons; click reuses the same `MicSpeaker_MouseLeftButtonUp`
-     handler → `ToggleMicMuteCommand`. No VM/code-behind change.
-  2. **REC sign (top center):** the old LIVE badge (hidden when offline) became an
-     **always-visible REC chip** — dark gray dot (#555) + dim "REC" (#888) offline,
-     **bright red (#e94560)** + "REC" + elapsed while live, **darker red (#8f1f1f)**
-     when live with a **private** stream. Driven by new VM props
-     `RecDotBrush`/`RecTextBrush`/`RecDotOpacity`/`IsLivePrivate` (notified from the
-     `StreamStatus` and `StreamVisibility` setters), privacy read off the **dialog's
-     chosen visibility** (`StreamVisibility == "Private"`) — the stream service still
-     hardcodes `privacyStatus = "public"`, so the private-REC state only lights once
-     that's honored (TASK 4 ship step 7). The dot pulses while live; `LiveIndicatorVisible`
-     and `LivePulseOpacity` were removed.
-  3. **Voice filters queued as task 22** — bass boost, treble, noise suppression,
-     compressor on the mic input channel, KISS, always on (before the meter/encoder mix).
+- **Branch:** `main`. The audio UX follow-up (`9f9ed34`), round 2 (`18abe42`),
+  and round 3 (`dc29adf`) are **committed and pushed**.
+- **This session (TASK 4 ship step 6 — health stats in the bottom bar):**
+  1. **Wiring:** `MainViewModel.OnFramePumpHealthUpdated` subscribes to
+     `FramePump.HealthUpdated` and marshals onto the UI thread (the encoder's
+     stderr loop raises on a background thread — same pattern as the audio
+     level handlers), copying the parsed bitrate/FPS/dropped/duration into
+     `CurrentHealth`, which the bottom bar's left stats group already binds
+     (bitrate/FPS/dropped/duration/health-message).
+  2. **Session hygiene:** `ResetHealth(status)` zeroes dropped frames + the
+     elapsed duration (and clears `LastError`) on go-live and on End so stats
+     never linger from a previous stream; bitrate/FPS stay on the tier's
+     targets from `ApplyStreamQuality`.
+  3. **Reality:** the bar lights up with REAL encoder values once TASK 5 fills
+     `_rtmpUrlProvider` with the reusable stream's ingest URL — until then the
+     pump skips the encoder (logged) and the bar shows the tier's targets.
+     No new tests needed: `FramePumpTests.HealthUpdated_ForwardsEncoderHealth`
+     already covers the pump→event seam; the VM handler is a thin marshal+copy.
 - **Mic status contract (creator's rule, verified — do NOT "fix"):** the status dot is
   **red until a mic resource is actually connected**. `MicStatus` starts `NotConnected`
   (red); it goes green ONLY when the mixer's `MicConnected` fires, which comes strictly
   from the mic source's `Started` event raised after `StartRecording()` succeeds. Zero
   devices at startup → stays red and the mixer is never started; capture failure → yellow.
   Green must never be raised earlier (e.g. on loopback start or on `Start()` being called).
-- **Uncommitted:** this round-3 work — `ViewModels/MainViewModel.cs` (REC props,
-  `_recDotPulse`, StreamVisibility/StreamStatus notifications, `LiveIndicatorVisible`/
-  `LivePulseOpacity` removed), `MainWindow.xaml` (REC chip + mic mute icon),
-  `TASKS.md` (task 22 + round-3 audio note), `ai.md`, `ViewModels/index.md`, `HANDOFF`.
+- **Uncommitted:** this session — `ViewModels/MainViewModel.cs` (health wiring +
+  `ResetHealth`), `TASKS.md` (ship step 6 ✅), `ai.md`, `ViewModels/index.md`, `HANDOFF`.
 - **Verified:** pending (build + full test run right before commit).
 - **Landmines:**
   - Never set a local `Canvas.SetTop` on the social bar — a local value permanently
@@ -64,12 +60,13 @@
     integration test (a real `MainWindow`), which never goes live — keep it that way.
   - Sandbox can't reach outbound HTTPS — `HttpSocialValidator` stub-handler tests
     only, never the real instance.
-- **Next step:** commit + push round 3 (one commit). Then TASK 4 ship step 6 — health
-  stats: bind `FramePump.HealthUpdated` (bitrate/FPS/duration) into the bottom bar.
-  Also queued: task 21 (logo + About hub), task 22 (voice filters). Nothing else
-  queued — do not expand the task queue on your own. Optional, not queued:
-  rewriting the healed entry's `ProfileUrl` to
-  `https://mastodon.llamachile.tube/@gramps` (user must say the word).
+- **Next step:** commit + push this ship-step-6 work (one commit). Then the remaining
+  TASK 4 requirement is **ship step 7 — one-click go live + private-only enforcement**
+  (honor the dialog's chosen visibility / enforce `privacyStatus = "private"`; also
+  fixes the REC sign's private state — see round-3 note above). Also queued: task 21
+  (logo + About hub), task 22 (voice filters). Nothing else queued — do not expand
+  the task queue on your own. Optional, not queued: rewriting the healed entry's
+  `ProfileUrl` to `https://mastodon.llamachile.tube/@gramps` (user must say the word).
 
 - **Secret/DB/port facts live:** OAuth client id/secret in `Helpers/OAuthCredentials.cs`;
   OAuth session token in `Helpers/TokenStore.cs` (DPAPI → `%APPDATA%\ytLlive\ytLlive.auth`);