fix(copilot): update homepage copy to focus on problem discovery

Update the CoPilot homepage to shift from 'what do you want?' to 'tell me about your problems'. This lowers the barrier to engagement by letting users describe their work frustrations instead of requiring them to identify automations themselves.

Changes:
- Headline: 'What do you want to automate?' → 'Tell me about your work — I'll find what to automate.'
- Placeholder: Updated to prompt users to describe their role and frustrations
- Quick actions: Changed from feature-oriented to problem-oriented prompts
- Container width: max-w-2xl → max-w-3xl (to fit longer headline on one line)

Resolves: SECRT-1876

autogpt_platform/backend/backend/api/features/chat/service.py

@@ -1184,11 +1184,14 @@ async def _stream_chat_chunks(
                                     else recent_messages
                                 )
                                 # Ensure tool pairs stay intact in the reduced slice
-                                reduced_slice_start = max(
+                                # Note: Search in messages_dict (full conversation) not recent_messages
+                                # (already sliced), so we can find assistants outside the current slice.
+                                # Calculate where reduced_recent starts in messages_dict
+                                reduced_start_in_dict = slice_start + max(
                                     0, len(recent_messages) - keep_count
                                 )
                                 reduced_recent = _ensure_tool_pairs_intact(
-                                    reduced_recent, recent_messages, reduced_slice_start
+                                    reduced_recent, messages_dict, reduced_start_in_dict
                                 )
                                 if has_system_prompt:
                                     messages = [

autogpt_platform/frontend/src/app/(platform)/copilot/helpers.ts

@@ -26,8 +26,8 @@ export function buildCopilotChatUrl(prompt: string): string {
 
 export function getQuickActions(): string[] {
   return [
-    "Show me what I can automate",
-    "Design a custom workflow",
-    "Help me with content creation",
+    "I don't know where to start, just ask me stuff",
+    "I do the same thing every week and it's killing me",
+    "Help me find where I'm wasting my time",
   ];
 }

autogpt_platform/frontend/src/app/(platform)/copilot/page.tsx

@@ -90,7 +90,7 @@ export default function CopilotPage() {
           </div>
         ) : (
           <>
-            <div className="mx-auto max-w-2xl">
+            <div className="mx-auto max-w-3xl">
               <Text
                 variant="h3"
                 className="mb-3 !text-[1.375rem] text-zinc-700"
@@ -98,13 +98,13 @@ export default function CopilotPage() {
                 Hey, <span className="text-violet-600">{greetingName}</span>
               </Text>
               <Text variant="h3" className="mb-8 !font-normal">
-                What do you want to automate?
+                Tell me about your work — I&apos;ll find what to automate.
               </Text>
 
               <div className="mb-6">
                 <ChatInput
                   onSend={startChatWithPrompt}
-                  placeholder='You can search or just ask - e.g. "create a blog post outline"'
+                  placeholder="What's your role and what eats up most of your day? e.g. 'I'm a real estate agent and I hate...'"
                 />
               </div>
             </div>