chore: Enforce a few house rules via eslint (#2539)

src/components/live/carousel.ts

@@ -233,7 +233,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
 
   private _setViewCameraID(cameraID?: string | null): void {
     if (cameraID) {
-      this.viewManagerEpoch?.manager.setViewByParametersWithNewQuery({
+      void this.viewManagerEpoch?.manager.setViewByParametersWithNewQuery({
         params: {
           camera: cameraID,
         },
@@ -319,9 +319,9 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
     const controller = this._mediaLoadedInfoSinkController.get()?.mediaPlayerController;
     // Fire-and-forget; the `volumechange` event drives the re-render.
     if (controller?.isMuted()) {
-      controller.unmute();
+      void controller.unmute();
     } else {
-      controller?.mute();
+      void controller?.mute();
     }
   }
 
@@ -478,7 +478,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
     const selectedCameraIndex = this._getSelectedCameraIndex();
 
     if (this.viewFilterCameraID) {
-      this._mediaActionsController.setTarget(
+      void this._mediaActionsController.setTarget(
         selectedCameraIndex,
         // Camera in this carousel is only selected if the camera from the
         // view matches the filtered camera.
@@ -486,7 +486,7 @@ export class AdvancedCameraCardLiveCarousel extends LitElement {
       );
     } else {
       // Carousel is not filtered, so the targeted camera is always selected.
-      this._mediaActionsController.setTarget(selectedCameraIndex, true);
+      void this._mediaActionsController.setTarget(selectedCameraIndex, true);
     }
 
     this._mediaHeightController.setSelected(selectedCameraIndex);

src/components/live/grid.ts

@@ -103,7 +103,7 @@ export class AdvancedCameraCardLiveGrid extends LitElement {
 
   protected willUpdate(changedProps: PropertyValues): void {
     if (changedProps.has('viewManagerEpoch') && this._needsGrid()) {
-      import('../media-grid.js');
+      void import('../media-grid.js');
     }
   }
 

src/components/live/index.ts

@@ -81,7 +81,7 @@ export class AdvancedCameraCardLive extends LitElement {
       // from a hidden live view. Treat the live view as having no selected
       // camera unless it is the active view.
       const view = this.viewManagerEpoch?.manager.getView();
-      this._microphoneActionsController.setSelectedCamera(
+      void this._microphoneActionsController.setSelectedCamera(
         view?.is('live') ? view.camera ?? null : null,
       );
     }

src/components/live/providers/go2rtc/index.ts

@@ -140,7 +140,7 @@ export class AdvancedCameraCardGo2RTC extends LitElement implements MediaPlayer
       // VideoRTC owns the transition: it updates microphoneStream, swaps the
       // track on the pre-armed transceiver, and validates against stale async
       // completions before any reconnect fallback. Fire-and-forget is fine.
-      /* async */ this._player.setMicrophoneStream(this.microphoneStream ?? null);
+      void this._player.setMicrophoneStream(this.microphoneStream ?? null);
     }
   }
 

src/components/live/providers/go2rtc/video-rtc.js

@@ -271,7 +271,7 @@ export class VideoRTC extends HTMLElement {
   /**
    * Owns the microphone stream transition end-to-end: updates the property,
    * extracts the outbound audio track, and swaps it onto the pre-armed audio
-   * transceiver via `replaceTrack` — no SDP renegotiation, no visible reload.
+   * transceiver via `replaceTrack` -- no SDP renegotiation, no visible reload.
    *
    * Falls back to a full reconnect if `replaceTrack` rejects, but only when
    * the rejection still describes the current desired state. The transceiver
@@ -410,8 +410,8 @@ export class VideoRTC extends HTMLElement {
    */
   disconnectedCallback() {
     // Synchronous manager-side cleanup by aborting the load's signal. The
-    // signal's abort listeners — registered by the card-root listener and
-    // any sinks in the bubble path — fire even though `parentNode` is
+    // signal's abort listeners -- registered by the card-root listener and
+    // any sinks in the bubble path -- fire even though `parentNode` is
     // already null, because abort is plain JS, not DOM-event-bound.
     this._abortController?.abort();
     this._abortController = null;
@@ -833,7 +833,7 @@ export class VideoRTC extends HTMLElement {
     // Always pre-arm a single outbound audio transceiver so the SDP advertises
     // the slot from the start. With the slot in place, the mic track can be
     // attached/detached later via `setMicrophoneStream` (replaceTrack) without
-    // renegotiating — avoiding a visible reload of this cell each time grid
+    // renegotiating -- avoiding a visible reload of this cell each time grid
     // selection moves the mic between cameras.
     //
     // Pure SDP allocation: the kind-only `addTransceiver('audio', ...)` form

src/components/live/providers/webrtc-card.ts

@@ -200,7 +200,7 @@ export class AdvancedCameraCardLiveWebRTCCard extends LitElement implements Medi
   public updated(): void {
     // Extract the video component after it has been rendered and generate the
     // media load event.
-    this.updateComplete.then(() => {
+    void this.updateComplete.then(() => {
       this._videoRTC = this.renderRoot?.querySelector('#webrtc') ?? null;
       const video = this._getVideo();
       if (video) {