fix(app): drop the trust-dialog note and tidy the empty chat

Headless bots never show Claude Code's folder-trust dialog, so the
welcome screen now explains approvals instead. The empty chat shows the
bot's role on its own line rather than running it into the next
sentence.

Author: httpsphl

app/src/features/chat/ChatView.tsx

@@ -147,9 +147,9 @@ export function ChatView({ bot, stopped }: { bot: Bot; stopped: boolean }) {
             <div className="flex flex-col items-center gap-3 py-16 text-center">
               <BotAvatar color={bot.color} size={56} />
               <p className="font-semibold text-base">Start a conversation with {bot.name}</p>
+              {bot.role && <p className="max-w-md text-ink-soft text-sm">{bot.role}</p>}
               <p className="max-w-md text-muted text-sm">
-                {bot.role || "Ask for anything its folder and tools can do."} You can attach files
-                and images too.
+                Ask for anything its folder and tools can do. You can attach files and images too.
               </p>
             </div>
           )}

app/src/features/onboarding/Welcome.tsx

@@ -39,10 +39,10 @@ export function Welcome() {
           {claude}
         </ul>
         <div className="mt-4 border border-line bg-panel p-4 text-sm leading-relaxed">
-          <p className="font-semibold">Each bot asks once to trust its folder</p>
+          <p className="font-semibold">Bots ask before they change things</p>
           <p className="mt-1 text-ink-soft">
-            The first time a bot starts, Claude Code asks whether you trust the bot's folder. The
-            bot waits in "Starting" until you answer "Yes, I trust this folder" in its terminal.
+            When a bot wants to run a command or edit a file, it asks in its chat and waits for you
+            to allow or deny it.
           </p>
         </div>
         <Button className="mt-6" variant="primary" icon={Plus} onClick={() => setCreating(true)}>