v0.7.5 bugs fixes

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "jama-frontend",
-  "version": "0.7.4",
+  "version": "0.7.5",
   "private": true,
   "scripts": {
     "dev": "vite",

frontend/src/utils/api.js

@@ -121,4 +121,9 @@ export const api = {
 
   // Link preview
   getLinkPreview: (url) => req('GET', `/link-preview?url=${encodeURIComponent(url)}`),
+
+  // Message pinning (DMs only, max 5 per conversation)
+  getPinnedMessages: (groupId) => req('GET', `/messages/pinned?groupId=${groupId}`),
+  pinMessage:   (messageId) => req('POST',   `/messages/${messageId}/pin`),
+  unpinMessage: (messageId) => req('DELETE',  `/messages/${messageId}/pin`),
 };