fix: resolve wormhole contract compilation and dependency issues for stylus 0.9.0

- Update import statements to use prelude::* for automatic trait imports
- Add lib crate-type to enable use as dependency in tests
- Add no_std configuration to main.rs
- Remove conflicting panic handler configuration
- Fix dependency resolution between wormhole-contract and pyth-receiver tests

All tests now pass with stylus-sdk 0.9.0 compatibility

Co-Authored-By: [email protected] <[email protected]>

Author: devin-ai-integration[bot]

target_chains/stylus/contracts/wormhole/Cargo.toml

@@ -27,4 +27,10 @@ motsu.workspace = true
 base64 = "0.21"
 
 [lib]
+name = "wormhole_contract"
 crate-type = ["lib", "cdylib"]
+
+[[bin]]
+name = "wormhole-contract"
+path = "src/main.rs"
+required-features = ["export-abi"]

target_chains/stylus/contracts/wormhole/src/lib.rs

@@ -5,18 +5,13 @@ extern crate alloc;
 #[global_allocator]
 static ALLOC: mini_alloc::MiniAlloc = mini_alloc::MiniAlloc::INIT;
 
-#[cfg(all(not(any(feature = "std", feature = "export-abi")), feature = "main"))]
-#[panic_handler]
-fn panic(_info: &core::panic::PanicInfo) -> ! {
-    loop {}
-}
 
 mod types;
 use types::{GuardianSet, GuardianSignature, VerifiedVM, WormholeError};
 
 use alloc::{vec, vec::Vec};
 use stylus_sdk::{
-    prelude::{entrypoint, public, storage},
+    prelude::*,
     storage::{StorageMap, StorageUint, StorageAddress, StorageBool},
     alloy_primitives::{Address, FixedBytes, U256, keccak256},
 };
@@ -413,4 +408,4 @@ impl IWormhole for WormholeContract {
         Err(WormholeError::InvalidVAAFormat)
     }
 }
-#[cfg(test)] mod tests;
+#[cfg(test)] mod tests;

target_chains/stylus/contracts/wormhole/src/main.rs

@@ -1,4 +1,5 @@
 #![cfg_attr(not(feature = "export-abi"), no_main)]
+#![cfg_attr(not(feature = "export-abi"), no_std)]
 
 #[cfg(feature = "export-abi")]
 fn main() {