chore: update admin apis

internal/model/admin.go

@@ -17,6 +17,7 @@ type AdminUser struct {
 	Plan            string     `json:"plan"`
 	EmailVerifiedAt *time.Time `json:"email_verified_at"`
 	BannedAt        *time.Time `json:"banned_at"`
+	PostCount       int        `json:"post_count"`
 	CreatedAt       time.Time  `json:"created_at"`
 }
 
@@ -54,10 +55,11 @@ type AdminFeedback struct {
 	ID           string     `json:"id"`
 	Category     string     `json:"category"`
 	Message      string     `json:"message"`
-	ContactEmail *string    `json:"contact_email"`
-	CreatedAt    time.Time  `json:"created_at"`
-	ResolvedAt   *time.Time `json:"resolved_at"`
-	RepliedAt    *time.Time `json:"replied_at"`
+	ContactEmail   *string    `json:"contact_email"`
+	CreatedAt      time.Time  `json:"created_at"`
+	AcknowledgedAt *time.Time `json:"acknowledged_at"`
+	ResolvedAt     *time.Time `json:"resolved_at"`
+	RepliedAt      *time.Time `json:"replied_at"`
 	ReplyMessage *string    `json:"reply_message"`
 	AuthorHandle *string    `json:"author_handle"`
 	AuthorName   *string    `json:"author_name"`