feat: enhance correct-last-epoch command with detailed message preview

- Show JSON message in pretty-printed format before confirmation
- Display encoded payload with size and hex representation
- Show these details in both dry-run mode and before confirmation
- Add example JSON file for CorrectLastEpoch message
- Remove redundant calldata display (same as payload for DataEdge contract)

Author: pcarranzav

crates/json-oracle-encoder/examples/06-correct-last-epoch.json

@@ -0,0 +1,8 @@
+[
+  {
+    "message": "CorrectLastEpoch",
+    "chainId": "eip155:42161",
+    "blockNumber": 248691234,
+    "merkleRoot": "0xf7c8c1f6d8a9e2b5c4a7d0e3f6b9c1d8e5a2f7b4c8d1e6a9f2c5b8d3e6f9a1b4"
+  }
+]

crates/oracle/src/commands/correct_epoch.rs

@@ -298,6 +298,25 @@ pub async fn correct_last_epoch(
     );
     println!("   Total networks in merkle tree: {}", all_blocks.len());
 
+    // Step 8: Create the CorrectLastEpoch message and show details
+    println!();
+    println!("📝 Message Details:");
+    
+    let json_message = serde_json::json!([{
+        "message": "CorrectLastEpoch",
+        "chainId": chain_id,
+        "blockNumber": corrected_block_number,
+        "merkleRoot": format!("0x{}", hex::encode(computed_merkle_root))
+    }]);
+    
+    println!("   JSON message:");
+    println!("   {}", serde_json::to_string_pretty(&json_message)?);
+    
+    let payload = messages_to_payload(json_message.clone())?;
+    println!();
+    println!("   Encoded payload ({} bytes):", payload.len());
+    println!("   0x{}", hex::encode(&payload));
+
     if dry_run {
         println!();
         println!("🏃 Dry run complete. No transaction submitted.");
@@ -317,18 +336,8 @@ pub async fn correct_last_epoch(
         }
     }
 
-    // Step 8: Create and submit the CorrectLastEpoch message
-    println!("📤 Creating CorrectLastEpoch message...");
-    let json_message = serde_json::json!([{
-        "message": "CorrectLastEpoch",
-        "chainId": chain_id,
-        "blockNumber": corrected_block_number,
-        "merkleRoot": format!("0x{}", hex::encode(computed_merkle_root))
-    }]);
-
-    let payload = messages_to_payload(json_message)?;
-    println!("   Message payload: {} bytes", payload.len());
-
+    // Step 9: Submit the transaction
+    println!();
     println!("🚀 Submitting transaction...");
     let contracts = super::init_contracts(config.clone())?;
     let tx = contracts