Rebrand from MyCrib to Casera

- Update Go module from mycrib-api to casera-api
- Update all import statements across 69 Go files
- Update admin panel branding (title, sidebar, login form)
- Update email templates (subjects, bodies, signatures)
- Update PDF report generation branding
- Update Docker container names and network
- Update config defaults (database name, email sender, APNS topic)
- Update README and documentation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

admin/src/app/(dashboard)/users/[id]/client.tsx

@@ -41,9 +41,9 @@ export function UserDetailClient() {
   const [showPushDialog, setShowPushDialog] = useState(false);
   const [showEmailDialog, setShowEmailDialog] = useState(false);
   const [pushTitle, setPushTitle] = useState('Test Notification');
-  const [pushBody, setPushBody] = useState('This is a test push notification from MyCrib Admin.');
-  const [emailSubject, setEmailSubject] = useState('Test Email from MyCrib');
-  const [emailBody, setEmailBody] = useState('This is a test email sent from the MyCrib Admin Panel.');
+  const [pushBody, setPushBody] = useState('This is a test push notification from Casera Admin.');
+  const [emailSubject, setEmailSubject] = useState('Test Email from Casera');
+  const [emailBody, setEmailBody] = useState('This is a test email sent from the Casera Admin Panel.');
 
   const { data: user, isLoading, error } = useQuery({
     queryKey: ['user', userId],

admin/src/app/layout.tsx

@@ -15,8 +15,8 @@ const geistMono = Geist_Mono({
 });
 
 export const metadata: Metadata = {
-  title: "MyCrib Admin",
-  description: "MyCrib Administration Panel",
+  title: "Casera Admin",
+  description: "Casera Administration Panel",
 };
 
 export default function RootLayout({

admin/src/components/app-sidebar.tsx

@@ -76,7 +76,7 @@ export function AppSidebar() {
       <SidebarHeader className="border-b px-6 py-4">
         <div className="flex items-center gap-2">
           <Building2 className="h-6 w-6" />
-          <span className="font-semibold text-lg">MyCrib Admin</span>
+          <span className="font-semibold text-lg">Casera Admin</span>
         </div>
       </SidebarHeader>
 

admin/src/components/login-form.tsx

@@ -34,7 +34,7 @@ export function LoginForm() {
     <Card className="w-full max-w-md">
       <CardHeader className="space-y-1">
         <CardTitle className="text-2xl font-bold text-center">
-          MyCrib Admin
+          Casera Admin
         </CardTitle>
         <CardDescription className="text-center">
           Enter your credentials to access the admin panel
@@ -53,7 +53,7 @@ export function LoginForm() {
             <Input
               id="email"
               type="email"
-              placeholder="admin@mycrib.com"
+              placeholder="admin@casera.app"
               value={email}
               onChange={(e) => setEmail(e.target.value)}
               required