feat(asset): enhance asset handling by adding storageKey and updating upload functions

dashboard/lib/api/agent.ts

@@ -96,6 +96,7 @@ export type AgentAsset = {
   id: number
   assetId: string
   provider: string
+  storageKey: string
   filename: string
   fileSize: number
   mimeType: string

dashboard/lib/api/im.ts

@@ -86,6 +86,7 @@ export type ImAsset = {
   id: number
   assetId: string
   provider: string
+  storageKey: string
   filename: string
   fileSize: number
   mimeType: string