fix(calls): remove the hidden right-click camera-on call shortcut

Fixes #25

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

src/app/features/room/RoomViewHeader.tsx

@@ -414,14 +414,9 @@ function CallButton() {
             ref={triggerRef}
             aria-label="Start call"
             onClick={handleOpenMenu}
-            onContextMenu={(evt) => {
+            // Gitea #25 — removed an undiscoverable onContextMenu shortcut that
-              evt.preventDefault();
+            // started a camera-on video call directly, bypassing cameraOnJoin and
-              startCall(room, {
+            // the room camera policy. The popout menu already offers Voice/Video.
-                microphone: true,
-                video: true,
-                sound: true,
-              });
-            }}
             disabled={inAnotherCall || callStarted}
             aria-pressed={!!menuAnchor}
           >