feat: P2.2 Create Appointment from Email + P2.4 Calendar Dashlet + P2.12 Action Wheel + P2.14 Share Files

- P2.2: 'Create Appointment' button in email viewer → pre-fills event modal
  with subject, body, participants, date. calendar-store newEventPrefill state.
- P2.4: MiniCalendarDashlet in sidebar bottom — month grid with event dots,
  day click navigates to calendar. Collapsible, respect firstDayOfWeek.
- P2.12: Custom radial menu (components/ui/radial-menu.tsx) — circular SVG
  menu with keyboard nav, animations. Wired into email-list, contact-list,
  file-browser, calendar-month-view right-click handlers.
- P2.14: 'Send as Attachment' button in file browser — opens compose tab
  with selected files pre-attached via Pro tab store.

components/email/email-composer.tsx

@@ -538,17 +538,19 @@ export function EmailComposer({
   // requests with the same draftId. See bug #303.
   const inflightSaveRef = useRef<Promise<string | null> | null>(null);
   const [attachments, setAttachments] = useState<ComposerAttachment[]>(() => {
-    if (mode === 'forward' && replyTo?.attachments?.length) {
-      return replyTo.attachments
+    if (replyTo?.attachments?.length) {
+      let atts = replyTo.attachments;
+      if (mode === 'forward') {
         // Skip inline cid-referenced images - they're embedded in the forwarded HTML body
         // (matches the viewer's hideInlineImageAttachments logic).
-        .filter(att => !(att.cid && att.disposition === 'inline' && (att.type || '').startsWith('image/')))
-        .map(att => ({
-          name: att.name || 'attachment',
-          type: att.type || 'application/octet-stream',
-          size: att.size,
-          blobId: att.blobId,
-        }));
+        atts = atts.filter(att => !(att.cid && att.disposition === 'inline' && (att.type || '').startsWith('image/')));
+      }
+      return atts.map(att => ({
+        name: att.name || 'attachment',
+        type: att.type || 'application/octet-stream',
+        size: att.size,
+        blobId: att.blobId,
+      }));
     }
     return [];
   });