fix: Add creator_name field to the proposal model

heromodels/src/models/governance/proposal.rs

@@ -102,7 +102,9 @@ impl Ballot {
 #[model] // Has base.Base in V spec
 pub struct Proposal {
     pub base_data: BaseModelData,
-    pub creator_id: String, // User ID of the proposal creator
+    pub creator_id: String,   // User ID of the proposal creator
+    pub creator_name: String, // User name of the proposal creator
+
     pub title: String,
     pub description: String,
     pub status: ProposalStatus,
@@ -129,6 +131,7 @@ impl Proposal {
     pub fn new(
         id: Option<u32>,
         creator_id: impl ToString,
+        creator_name: impl ToString,
         title: impl ToString,
         description: impl ToString,
         vote_start_date: DateTime<Utc>,
@@ -142,6 +145,7 @@ impl Proposal {
         Self {
             base_data,
             creator_id: creator_id.to_string(),
+            creator_name: creator_name.to_string(),
             title: title.to_string(),
             description: description.to_string(),
             status: ProposalStatus::Draft,