Add inline pet rename, larger header text, and HaBit branding.

Let users edit the pet name from PetHabitat with a pencil icon, bump the name and mood header sizing, and rename user-facing Habit Pet copy to HaBit Pet.

lib/daily-reminders.ts

@@ -174,7 +174,7 @@ export function showTestSystemDailyReminderNotification(
   }
 
   const { body, targetUrl } = buildDailyReminderNotification(status);
-  const notification = new Notification("Test: Habit Pet reminder", {
+  const notification = new Notification("Test: HaBit Pet reminder", {
     body: `This is a browser test notification. ${body}`,
     tag: `habit-pet-daily-reminder-test-${Date.now()}`,
   });

lib/openrouter.ts

@@ -46,7 +46,7 @@ export async function generateAiTaskLabels(
       Authorization: `Bearer ${apiKey}`,
       "Content-Type": "application/json",
       "HTTP-Referer": siteUrl,
-      "X-Title": "Habit Pet",
+      "X-Title": "HaBit Pet",
     },
     body: JSON.stringify({
       model: DEFAULT_OPENROUTER_MODEL,

lib/reminder-delivery.ts

@@ -3,7 +3,7 @@ export const reminderDeliveryOptions = [
     value: "in_app",
     label: "In-app",
     description:
-      "Show reminders inside Habit Pet when you have the site open in a tab.",
+      "Show reminders inside HaBit Pet when you have the site open in a tab.",
   },
   {
     value: "system",