fix(platform): consistent header icon sizing, halve rate limits

- Add size="icon" to SidebarTrigger for uniform h-9 w-9 button sizing
- Remove extra positioning wrappers (relative left-1, left-5) around header icons
- Halve daily token limit to 2.5M and weekly to 12.5M for more reasonable defaults

autogpt_platform/backend/backend/copilot/config.py

@@ -72,13 +72,13 @@ class ChatConfig(BaseSettings):
 
     # Rate limiting — token-based limits per day and per week.
     # Each CoPilot turn consumes ~10-15K tokens (system prompt + tool schemas + response),
-    # so 5M daily allows ~350-500 turns/day which is generous for normal use.
+    # so 2.5M daily allows ~170-250 turns/day which is reasonable for normal use.
     daily_token_limit: int = Field(
-        default=5_000_000,
+        default=2_500_000,
         description="Max tokens per day, resets at midnight UTC (0 = unlimited)",
     )
     weekly_token_limit: int = Field(
-        default=25_000_000,
+        default=12_500_000,
         description="Max tokens per week, resets Monday 00:00 UTC (0 = unlimited)",
     )
 

autogpt_platform/frontend/src/app/(platform)/copilot/components/ChatSidebar/ChatSidebar.tsx

@@ -257,12 +257,10 @@ export function ChatSidebar() {
                 <Text variant="h3" size="body-medium">
                   Your chats
                 </Text>
-                <div className="relative left-5 flex items-center gap-1">
+                <div className="flex items-center">
                   <UsageLimits />
                   <NotificationToggle />
-                  <div className="relative left-1">
-                    <SidebarTrigger />
-                  </div>
+                  <SidebarTrigger />
                 </div>
               </div>
               {sessionId ? (

autogpt_platform/frontend/src/components/ui/sidebar.tsx

@@ -288,6 +288,7 @@ const SidebarTrigger = React.forwardRef<
       ref={ref}
       data-sidebar="trigger"
       variant="ghost"
+      size="icon"
       onClick={(event) => {
         onClick?.(event);
         toggleSidebar();