Improve notification bell placement and change sender to MOPC Portal

- Move notification bell to sidebar header next to logo (desktop)
- Keep bell in mobile header bar (already well-placed)
- Change email sender name from 'MOPC Platform' to 'MOPC Portal'

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/components/layouts/admin-sidebar.tsx

@@ -170,9 +170,12 @@ export function AdminSidebar({ user }: AdminSidebarProps) {
           isMobileMenuOpen ? 'translate-x-0' : '-translate-x-full'
         )}
       >
-        {/* Logo */}
+        {/* Logo + Notification */}
-        <div className="flex h-16 items-center border-b px-6">
+        <div className="flex h-16 items-center justify-between border-b px-6">
           <Logo showText textSuffix="Admin" />
+          <div className="hidden lg:block">
+            <NotificationBell />
+          </div>
         </div>
 
         {/* Edition Selector */}
@@ -245,10 +248,6 @@ export function AdminSidebar({ user }: AdminSidebarProps) {
 
         {/* User Profile Section */}
         <div className="border-t p-3">
-          {/* Notification Bell - Desktop */}
-          <div className="hidden lg:flex justify-end mb-2">
-            <NotificationBell />
-          </div>
           <DropdownMenu>
             <DropdownMenuTrigger asChild>
               <button className="group flex w-full items-center gap-3 rounded-xl p-2.5 text-left transition-all duration-200 hover:bg-slate-100 dark:hover:bg-slate-800 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring">

src/lib/email.ts

@@ -30,7 +30,7 @@ async function getTransporter(): Promise<{ transporter: Transporter; from: strin
   const port = db.smtp_port || process.env.SMTP_PORT || '587'
   const user = db.smtp_user || process.env.SMTP_USER || ''
   const pass = db.smtp_password || process.env.SMTP_PASS || ''
-  const from = db.email_from || process.env.EMAIL_FROM || 'MOPC Platform <noreply@monaco-opc.com>'
+  const from = db.email_from || process.env.EMAIL_FROM || 'MOPC Portal <noreply@monaco-opc.com>'
 
   // Check if config changed since last call
   const configHash = `${host}:${port}:${user}:${pass}:${from}`
@@ -52,7 +52,7 @@ async function getTransporter(): Promise<{ transporter: Transporter; from: strin
 }
 
 // Legacy references for backward compat — default sender from env
-const defaultFrom = process.env.EMAIL_FROM || 'MOPC Platform <noreply@monaco-opc.com>'
+const defaultFrom = process.env.EMAIL_FROM || 'MOPC Portal <noreply@monaco-opc.com>'
 
 // =============================================================================
 // Brand Colors & Logo URLs
@@ -248,7 +248,7 @@ interface EmailTemplate {
 function getMagicLinkTemplate(url: string, expiryMinutes: number = 15): EmailTemplate {
   const content = `
     ${sectionTitle('Sign in to your account')}
-    ${paragraph('Click the button below to securely sign in to the MOPC Platform.')}
+    ${paragraph('Click the button below to securely sign in to the MOPC Portal.')}
     ${infoBox(`<strong>This link expires in ${expiryMinutes} minutes</strong>`, 'warning')}
     ${ctaButton(url, 'Sign In to MOPC')}
     <p style="color: ${BRAND.textMuted}; margin: 24px 0 0 0; font-size: 13px; text-align: center;">
@@ -257,10 +257,10 @@ function getMagicLinkTemplate(url: string, expiryMinutes: number = 15): EmailTem
   `
 
   return {
-    subject: 'Sign in to MOPC Platform',
+    subject: 'Sign in to MOPC Portal',
     html: getEmailWrapper(content),
     text: `
-Sign in to MOPC Platform
+Sign in to MOPC Portal
 =========================
 
 Click the link below to sign in to your account:
@@ -298,7 +298,7 @@ function getGenericInvitationTemplate(
   `
 
   return {
-    subject: "You're invited to join the MOPC Platform",
+    subject: "You're invited to join the MOPC Portal",
     html: getEmailWrapper(content),
     text: `
 ${greeting}
@@ -693,7 +693,7 @@ export async function sendTestEmail(toEmail: string): Promise<boolean> {
   try {
     const content = `
       ${sectionTitle('Test Email')}
-      ${paragraph('This is a test email from the MOPC Platform.')}
+      ${paragraph('This is a test email from the MOPC Portal.')}
       ${infoBox('If you received this, your email configuration is working correctly!', 'success')}
       <p style="color: ${BRAND.textMuted}; margin: 20px 0 0 0; font-size: 13px; text-align: center;">
         Sent at ${new Date().toISOString()}
@@ -704,8 +704,8 @@ export async function sendTestEmail(toEmail: string): Promise<boolean> {
     await transporter.sendMail({
       from,
       to: toEmail,
-      subject: 'MOPC Platform - Test Email',
+      subject: 'MOPC Portal - Test Email',
-      text: 'This is a test email from the MOPC Platform. If you received this, your email configuration is working correctly.',
+      text: 'This is a test email from the MOPC Portal. If you received this, your email configuration is working correctly.',
       html: getEmailWrapper(content),
     })
     return true
@@ -806,7 +806,7 @@ function getNotificationEmailTemplate(
     </div>
     ${linkUrl ? ctaButton(linkUrl, 'View Details') : ''}
     <p style="color: ${BRAND.textMuted}; margin: 24px 0 0 0; font-size: 13px; text-align: center;">
-      You received this email because of your notification preferences on the MOPC Platform.
+      You received this email because of your notification preferences on the MOPC Portal.
     </p>
   `