feat: Support incremental mode:

- Support incremental mode in heromodels
- Updated the example to refelct the changes
- Updated the tests to reflect the changes

heromodels/src/models/finance/account.rs

@@ -22,13 +22,22 @@ pub struct Account {
 
 impl Account {
     /// Create a new account
+    ///
+    /// # Arguments
+    /// * `id` - Optional ID for the account. If None, the ID will be auto-generated.
+    /// * `name` - Name of the account
+    /// * `user_id` - ID of the user who owns the account
+    /// * `description` - Description of the account
+    /// * `ledger` - Ledger/blockchain where the account is located
+    /// * `address` - Address of the account on the blockchain
+    /// * `pubkey` - Public key
     pub fn new(
-        id: u32, 
-        name: impl ToString, 
-        user_id: u32, 
-        description: impl ToString, 
-        ledger: impl ToString, 
-        address: impl ToString, 
+        id: Option<u32>,
+        name: impl ToString,
+        user_id: u32,
+        description: impl ToString,
+        ledger: impl ToString,
+        address: impl ToString,
         pubkey: impl ToString
     ) -> Self {
         Self {

heromodels/src/models/finance/asset.rs

@@ -35,7 +35,7 @@ pub struct Asset {
 impl Asset {
     /// Create a new asset
     pub fn new(
-        id: u32,
+        id: Option<u32>,
         name: impl ToString,
         description: impl ToString,
         amount: f64,

heromodels/src/models/finance/marketplace.rs

@@ -113,7 +113,7 @@ pub struct Listing {
 impl Listing {
     /// Create a new listing
     pub fn new(
-        id: u32,
+        id: Option<u32>,
         title: impl ToString,
         description: impl ToString,
         asset_id: impl ToString,