👽 Support new attachment reference system

pubspec.lock

@@ -786,10 +786,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
+      sha256: "3105dc8492f6183fb076ccf1f351ac3d60564bff92e20bfc4af9cc1651f4e7e1"
       url: "https://pub.dev"
     source: hosted
-    version: "5.0.0"
+    version: "6.0.0"
   flutter_localizations:
     dependency: transitive
     description: flutter
@@ -831,10 +831,10 @@ packages:
     dependency: "direct main"
     description:
       name: flutter_platform_alert
-      sha256: c4b509956346ce9666512b700354de4c6f8fdff94cd47c12368e4a6b1c25a02c
+      sha256: "70f4979a617388cd890ec32e9acc1a6a425bcdf3d8b444eb976be1834e79dc0c"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.0"
+    version: "0.8.0"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -1170,10 +1170,10 @@ packages:
     dependency: transitive
     description:
       name: lints
-      sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7
+      sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0
       url: "https://pub.dev"
     source: hosted
-    version: "5.1.1"
+    version: "6.0.0"
   livekit_client:
     dependency: "direct main"
     description:
@@ -2246,5 +2246,5 @@ packages:
     source: hosted
     version: "3.1.3"
 sdks:
-  dart: ">=3.7.2 <4.0.0"
+  dart: ">=3.8.0 <4.0.0"
   flutter: ">=3.27.0"