fix(calls): "Focus camera" toggles to "Unfocus"; pin cleared on dispose; drop dead setPipMode

clearFocusParticipant() had no callers, so a spotlight pin was permanent.
CallControl now tracks focusedUserId, the member menu toggles, and
dispose() clears the pin. Removes _pipMode/setPipMode (never read).

Fixes #56
Fixes #59

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA

src/app/features/call-status/MemberGlance.tsx

@@ -1,6 +1,6 @@
 import { Box, config, Icon, Icons, Menu, MenuItem, PopOut, RectCords, Text } from 'folds';
 import { CallMembership } from 'matrix-js-sdk/lib/matrixrtc/CallMembership';
-import React, { useState } from 'react';
+import React, { useEffect, useState } from 'react';
 import FocusTrap from 'focus-trap-react';
 import { Room } from 'matrix-js-sdk';
 import { UserAvatar } from '../../components/user-avatar';
@@ -12,8 +12,31 @@ import { StackedAvatar } from '../../components/stacked-avatar';
 import { useOpenUserRoomProfile } from '../../state/hooks/userRoomProfile';
 import { stopPropagation } from '../../utils/keyboard';
 import { CallEmbed } from '../../plugins/call/CallEmbed';
+import { CallControlEvent } from '../../plugins/call/CallControl';
 import * as css from './styles.css';
 
+// [Gitea #56] Subscribes to CallControl's focus pin so the menu can render a
+// "Focus camera" / "Unfocus camera" toggle instead of a one-way pin.
+function useFocusedUserId(callEmbed?: CallEmbed): string | null {
+  const control = callEmbed?.control;
+  const [focusedUserId, setFocusedUserId] = useState<string | null>(control?.focusedUserId ?? null);
+
+  useEffect(() => {
+    if (!control) {
+      setFocusedUserId(null);
+      return undefined;
+    }
+    setFocusedUserId(control.focusedUserId);
+    const handleUpdate = () => setFocusedUserId(control.focusedUserId);
+    control.on(CallControlEvent.StateUpdate, handleUpdate);
+    return () => {
+      control.off(CallControlEvent.StateUpdate, handleUpdate);
+    };
+  }, [control]);
+
+  return focusedUserId;
+}
+
 type ParticipantMenuProps = {
   anchor: RectCords;
   name: string;
@@ -33,15 +56,23 @@ function ParticipantMenu({
   profileCords,
 }: ParticipantMenuProps) {
   const openUserProfile = useOpenUserRoomProfile();
+  const focusedUserId = useFocusedUserId(callEmbed);
+  const isFocused = focusedUserId === userId;
 
   const handleViewProfile = () => {
     onClose();
     openUserProfile(room.roomId, undefined, userId, profileCords, 'Top');
   };
 
+  // [Gitea #56] Toggle: focusing the already-focused participant clears the
+  // pin and returns EC to speaker-follows, instead of leaving no way back.
   const handleFocusCamera = () => {
     onClose();
-    callEmbed?.control.focusCameraParticipant(userId);
+    if (isFocused) {
+      callEmbed?.control.clearFocusParticipant();
+    } else {
+      callEmbed?.control.focusCameraParticipant(userId);
+    }
   };
 
   return (
@@ -78,7 +109,7 @@ function ParticipantMenu({
                   before={<Icon size="100" src={Icons.VideoCamera} />}
                   onClick={handleFocusCamera}
                 >
-                  <Text size="B300">Focus camera</Text>
+                  <Text size="B300">{isFocused ? 'Unfocus camera' : 'Focus camera'}</Text>
                 </MenuItem>
               )}
               <MenuItem