feat: add minimal Soroban contract template scaffold

crates/contracts/core/src/lib.rs

@@ -1,42 +1,33 @@
 #![no_std]
-use soroban_sdk::{contract, contractimpl, Env, Symbol};
+use soroban_sdk::{contract, contractimpl, Address, Env};
 
 #[contract]
-pub struct StellarAidContract;
+pub struct CoreContract;
 
 #[contractimpl]
-impl StellarAidContract {
-    pub fn hello(_env: Env, _to: Symbol) -> Symbol {
-        soroban_sdk::symbol_short!("Hello")
-    }
+impl CoreContract {
+    pub fn init(_env: Env, _admin: Address) {}
 
-    pub fn get_greeting(_env: Env) -> Symbol {
-        soroban_sdk::symbol_short!("Hi")
+    pub fn ping(_env: Env) -> u32 {
+        1
     }
 }
 
 #[cfg(test)]
 mod tests {
     use super::*;
-    use soroban_sdk::{symbol_short, Env};
+    use soroban_sdk::Env;
 
     #[test]
-    fn test_hello() {
+    fn test_init_and_ping() {
         let env = Env::default();
-        let contract_id = env.register_contract(None, StellarAidContract);
-        let client = StellarAidContractClient::new(&env, &contract_id);
-
-        let result = client.hello(&symbol_short!("World"));
-        assert_eq!(result, symbol_short!("Hello"));
-    }
+        let contract_id = env.register_contract(None, CoreContract);
+        let client = CoreContractClient::new(&env, &contract_id);
 
-    #[test]
-    fn test_get_greeting() {
-        let env = Env::default();
-        let contract_id = env.register_contract(None, StellarAidContract);
-        let client = StellarAidContractClient::new(&env, &contract_id);
+        let admin = env.current_contract_address();
+        client.init(&admin);
 
-        let result = client.get_greeting();
-        assert_eq!(result, symbol_short!("Hi"));
+        let result = client.ping();
+        assert_eq!(result, 1);
     }
 }