feat: Optimize WebRTC pipeline for 60fps screen sharing

- Implemented 'Overdrive' logic to force high bitrates on Chrome
- Fixed 'Auto' preset to default to stable 720p60
- Added persistent 'Triple-Kick' hammer to prevent bitrate throttling
- Fixed sidebar connection status sync
- Added comprehensive diagnostic logger

packages/web/src/components/chat/MessageList.tsx

@@ -1,6 +1,9 @@
 import React, { useEffect, useRef, useCallback, useState, useMemo } from 'react';
 import { Message } from './Message';
 import { useChatStore } from '../../stores/chatStore';
+import { useServerStore, isDmChannel } from '../../stores/serverStore';
+import { useAuthStore } from '../../stores/authStore';
+import { Avatar } from '../ui/Avatar';
 import { LoadingSpinner } from '../ui/LoadingSpinner';
 import type { MessageWithUser } from '@opencord/shared';
 
@@ -118,18 +121,7 @@ export function MessageList({ channelId }: MessageListProps) {
         </div>
       )}
 
-      {!hasMore && (
-        <div className="px-4 pt-8 pb-4">
-          <div className="w-[68px] h-[68px] rounded-full bg-discord-bg-accent flex items-center justify-center mb-4 text-white">
-            <svg width="42" height="42" viewBox="0 0 24 24" fill="currentColor">
-              <path d="M5.88657 21C5.57547 21 5.3399 20.7189 5.39427 20.4126L6.00001 17H2.59511C2.28449 17 2.04905 16.7198 2.10259 16.4138L2.27759 15.4138C2.31946 15.1746 2.52722 15 2.77011 15H6.35001L7.41001 9H4.00511C3.69449 9 3.45905 8.71977 3.51259 8.41381L3.68759 7.41381C3.72946 7.17456 3.93722 7 4.18011 7H7.76001L8.39677 3.41262C8.43914 3.17391 8.64664 3 8.88907 3H9.87344C10.1845 3 10.4201 3.28107 10.3657 3.58738L9.76001 7H15.76L16.3968 3.41262C16.4391 3.17391 16.6466 3 16.8891 3H17.8734C18.1845 3 18.4201 3.28107 18.3657 3.58738L17.76 7H21.1649C21.4755 7 21.711 7.28023 21.6574 7.58619L21.4824 8.58619C21.4406 8.82544 21.2328 9 20.9899 9H17.41L16.35 15H19.7549C20.0655 15 20.301 15.2802 20.2474 15.5862L20.0724 16.5862C20.0306 16.8254 19.8228 17 19.5799 17H16L15.3632 20.5874C15.3209 20.8261 15.1134 21 14.8709 21H13.8866C13.5755 21 13.3399 20.7189 13.3943 20.4126L14 17H8.00001L7.36325 20.5874C7.32088 20.8261 7.11337 21 6.87094 21H5.88657ZM9.41001 9L8.35001 15H14.35L15.41 9H9.41001Z" />
-            </svg>
-          </div>
-          <h3 className="text-[32px] leading-10 font-bold text-discord-text-primary">Welcome to the channel!</h3>
-          <p className="text-discord-text-secondary text-[16px] mt-2">This is the start of the conversation.</p>
-          <div className="mt-6 border-b border-discord-modifier-accent" />
-        </div>
-      )}
+      {!hasMore && <WelcomeHeader channelId={channelId} />}
 
       <div className="pb-6">
         {messages.map((msg, i) => {
@@ -162,3 +154,47 @@ export function MessageList({ channelId }: MessageListProps) {
     </div>
   );
 }
+
+function WelcomeHeader({ channelId }: { channelId: string }) {
+  const dmChannels = useServerStore((s) => s.dmChannels);
+  const authUser = useAuthStore((s) => s.user);
+  const isDm = isDmChannel(channelId);
+
+  if (isDm) {
+    const dm = dmChannels.find(d => d.id === channelId);
+    const otherUser = dm?.members.find(m => m.id !== authUser?.id);
+    const displayName = otherUser?.displayName ?? otherUser?.username ?? 'Unknown';
+    const username = otherUser?.username ?? 'unknown';
+
+    return (
+      <div className="px-4 pt-8 pb-4">
+        <div className="mb-2">
+          <Avatar src={otherUser?.avatar} name={displayName} size={80} />
+        </div>
+        <h3 className="text-[32px] leading-10 font-bold text-discord-text-primary">{displayName}</h3>
+        <p className="text-discord-text-secondary text-[14px] mt-1">
+          This is the beginning of your direct message history with <strong>@{username}</strong>.
+        </p>
+        <div className="mt-4">
+          <button className="px-4 py-1.5 bg-discord-bg-accent hover:bg-discord-bg-surface-higher text-[14px] font-medium text-discord-text-primary rounded-[3px] transition-colors">
+            Remove Friend
+          </button>
+        </div>
+        <div className="mt-6 border-b border-discord-modifier-accent" />
+      </div>
+    );
+  }
+
+  return (
+    <div className="px-4 pt-8 pb-4">
+      <div className="w-[68px] h-[68px] rounded-full bg-discord-bg-accent flex items-center justify-center mb-4 text-white">
+        <svg width="42" height="42" viewBox="0 0 24 24" fill="currentColor">
+          <path d="M5.88657 21C5.57547 21 5.3399 20.7189 5.39427 20.4126L6.00001 17H2.59511C2.28449 17 2.04905 16.7198 2.10259 16.4138L2.27759 15.4138C2.31946 15.1746 2.52722 15 2.77011 15H6.35001L7.41001 9H4.00511C3.69449 9 3.45905 8.71977 3.51259 8.41381L3.68759 7.41381C3.72946 7.17456 3.93722 7 4.18011 7H7.76001L8.39677 3.41262C8.43914 3.17391 8.64664 3 8.88907 3H9.87344C10.1845 3 10.4201 3.28107 10.3657 3.58738L9.76001 7H15.76L16.3968 3.41262C16.4391 3.17391 16.6466 3 16.8891 3H17.8734C18.1845 3 18.4201 3.28107 18.3657 3.58738L17.76 7H21.1649C21.4755 7 21.711 7.28023 21.6574 7.58619L21.4824 8.58619C21.4406 8.82544 21.2328 9 20.9899 9H17.41L16.35 15H19.7549C20.0655 15 20.301 15.2802 20.2474 15.5862L20.0724 16.5862C20.0306 16.8254 19.8228 17 19.5799 17H16L15.3632 20.5874C15.3209 20.8261 15.1134 21 14.8709 21H13.8866C13.5755 21 13.3399 20.7189 13.3943 20.4126L14 17H8.00001L7.36325 20.5874C7.32088 20.8261 7.11337 21 6.87094 21H5.88657ZM9.41001 9L8.35001 15H14.35L15.41 9H9.41001Z" />
+        </svg>
+      </div>
+      <h3 className="text-[32px] leading-10 font-bold text-discord-text-primary">Welcome to the channel!</h3>
+      <p className="text-discord-text-secondary text-[16px] mt-2">This is the start of the conversation.</p>
+      <div className="mt-6 border-b border-discord-modifier-accent" />
+    </div>
+  );
+}