chore: prettier format all files, brotli, Sentry release tagging, CI gates

Prettier: auto-formatted 103 files to fix baseline. Prettier check in CI
  is now a hard gate (removed continue-on-error).

Brotli: installed libnginx-mod-http-brotli-filter/static. Enabled in nginx
  with brotli_static on for pre-compressed assets and comp_level 6.

Sentry releases: deploy script now exports VITE_APP_VERSION=<git-short-sha>
  before building so each Sentry release maps to an exact commit.
  CI also passes github.sha as VITE_APP_VERSION.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/app/plugins/call/CallControl.ts

@@ -30,7 +30,10 @@ export class CallControl extends EventEmitter implements CallControlState {
 
   private get settingsButton(): HTMLElement | undefined {
     // EC 0.19.3: settings button has data-testid="settings-bottom-center"
-    return (this.document?.querySelector('[data-testid="settings-bottom-center"]') as HTMLElement) ?? undefined;
+    return (
+      (this.document?.querySelector('[data-testid="settings-bottom-center"]') as HTMLElement) ??
+      undefined
+    );
   }
 
   private get reactionsButton(): HTMLElement | undefined {
@@ -98,7 +101,13 @@ export class CallControl extends EventEmitter implements CallControlState {
   }
 
   public async forceState(desired: CallControlState) {
-    this.state = new CallControlState(desired.microphone, desired.video, desired.sound, this.screenshare, this.spotlight);
+    this.state = new CallControlState(
+      desired.microphone,
+      desired.video,
+      desired.sound,
+      this.screenshare,
+      this.spotlight
+    );
     await this.applyState();
   }
 
@@ -177,7 +186,9 @@ export class CallControl extends EventEmitter implements CallControlState {
 
     // EC auto-switches to spotlight when screenshare starts — revert to grid
     if (!prevScreenshare && screenshare) {
-      setTimeout(() => { if (this.spotlight) this.gridButton?.click(); }, 600);
+      setTimeout(() => {
+        if (this.spotlight) this.gridButton?.click();
+      }, 600);
     }
   }