feat: implement token holder lock/unlock with transfer gate

contracts/.gitignore

@@ -1,2 +1,3 @@
 target
-.env
+.env
+test_snapshots/

contracts/asset-maintenance/src/lib.rs

@@ -1,7 +1,5 @@
 #![no_std]
-use soroban_sdk::{
-    contract, contractimpl, contracttype, symbol_short, Address, Env, String, Vec,
-};
+use soroban_sdk::{contract, contractimpl, contracttype, symbol_short, Address, Env, String, Vec};
 
 mod test;
 
@@ -143,11 +141,11 @@ pub enum DataKey {
     Admin,
     AssetRegistry,
     Provider(Address),
-    MaintenanceHistory(u64),      // asset_id -> Vec<MaintenanceRecord>
-    MaintenanceSchedule(u64),     // asset_id -> ScheduledMaintenance
-    Warranty(u64),                // asset_id -> WarrantyInfo
-    Alerts(u64),                 // asset_id -> Vec<MaintenanceAlert>
-    AssetStats(u64),              // asset_id -> AssetStats (downtime, total cost, etc.)
+    MaintenanceHistory(u64),  // asset_id -> Vec<MaintenanceRecord>
+    MaintenanceSchedule(u64), // asset_id -> ScheduledMaintenance
+    Warranty(u64),            // asset_id -> WarrantyInfo
+    Alerts(u64),              // asset_id -> Vec<MaintenanceAlert>
+    AssetStats(u64),          // asset_id -> AssetStats (downtime, total cost, etc.)
 }
 
 #[contracttype]
@@ -540,7 +538,7 @@ impl AssetMaintenanceContract {
             }
         }
 
-        score.min(100).max(0)
+        score.clamp(0, 100)
     }
 
     fn verify_asset_exists(_env: &Env, _asset_id: u64) -> bool {

contracts/asset-maintenance/src/test.rs

@@ -8,7 +8,7 @@ use soroban_sdk::{vec, Address, Env, String};
 #[test]
 fn test_init_and_provider_registration() {
     let env = Env::default();
-    let contract_id = env.register_contract(None, AssetMaintenanceContract);
+    let contract_id = env.register(AssetMaintenanceContract, ());
     let client = AssetMaintenanceContractClient::new(&env, &contract_id);
 
     let admin = Address::generate(&env);
@@ -35,19 +35,19 @@ fn test_init_and_provider_registration() {
 
     let fetched = client.get_provider_details(&provider_addr).unwrap();
     assert_eq!(fetched.name, String::from_str(&env, "Service Corp"));
-    assert_eq!(fetched.is_active, true);
+    assert!(fetched.is_active);
 
     client.deactivate_provider(&provider_addr);
     let deactivated = client.get_provider_details(&provider_addr).unwrap();
-    assert_eq!(deactivated.is_active, false);
+    assert!(!deactivated.is_active);
 }
 
 #[test]
 fn test_maintenance_lifecycle() {
     let env = Env::default();
     env.mock_all_auths();
 
-    let contract_id = env.register_contract(None, AssetMaintenanceContract);
+    let contract_id = env.register(AssetMaintenanceContract, ());
     let client = AssetMaintenanceContractClient::new(&env, &contract_id);
 
     let admin = Address::generate(&env);
@@ -112,7 +112,7 @@ fn test_warranty_and_claims() {
     let env = Env::default();
     env.mock_all_auths();
 
-    let contract_id = env.register_contract(None, AssetMaintenanceContract);
+    let contract_id = env.register(AssetMaintenanceContract, ());
     let client = AssetMaintenanceContractClient::new(&env, &contract_id);
 
     let admin = Address::generate(&env);
@@ -147,7 +147,7 @@ fn test_alerts_and_stats() {
     let env = Env::default();
     env.mock_all_auths();
 
-    let contract_id = env.register_contract(None, AssetMaintenanceContract);
+    let contract_id = env.register(AssetMaintenanceContract, ());
     let client = AssetMaintenanceContractClient::new(&env, &contract_id);
 
     let admin = Address::generate(&env);
@@ -172,11 +172,11 @@ fn test_alerts_and_stats() {
 
     client.acknowledge_maintenance_alert(&asset_id, &0, &admin);
     let acknowledged_alerts = client.get_alerts(&asset_id);
-    assert_eq!(acknowledged_alerts.get(0).unwrap().acknowledged, true);
+    assert!(acknowledged_alerts.get(0).unwrap().acknowledged);
 
     // Test stats
     let stats = client.get_asset_stats(&asset_id);
     assert_eq!(stats.service_count, 0); // No service yet
 
-    assert_eq!(client.is_maintenance_cost_excessive(&asset_id, &1000), false);
+    assert!(!client.is_maintenance_cost_excessive(&asset_id, &1000));
 }