fix(dash-spv): remove obsolete StoredTerminalBlock references from tests

The StoredTerminalBlock type and related methods (store_terminal_block,
get_terminal_block, clear_terminal_block) were removed from the
StorageManager trait but references remained in test mock implementations.

- Removed terminal block method implementations from MockStorageManager
  in error_handling_test.rs and error_recovery_integration_test.rs
- These methods are no longer part of the StorageManager trait

Note: These test files still have other compilation issues with their
mock implementations that need separate fixes.

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: 2 people

dash-spv/tests/error_handling_test.rs

@@ -378,31 +378,8 @@ impl StorageManager for MockStorageManager {
         Ok(None)
     }
 
-    async fn store_terminal_block(
-        &mut self,
-        _block: &dash_spv::storage::StoredTerminalBlock,
-    ) -> StorageResult<()> {
-        if self.fail_on_write {
-            return Err(StorageError::WriteFailed("Mock write failure".to_string()));
-        }
-        Ok(())
-    }
-
-    async fn get_terminal_block(
-        &self,
-    ) -> StorageResult<Option<dash_spv::storage::StoredTerminalBlock>> {
-        if self.fail_on_read {
-            return Err(StorageError::ReadFailed("Mock read failure".to_string()));
-        }
-        Ok(None)
-    }
-
-    async fn clear_terminal_block(&mut self) -> StorageResult<()> {
-        if self.fail_on_write {
-            return Err(StorageError::WriteFailed("Mock write failure".to_string()));
-        }
-        Ok(())
-    }
+    // Terminal block methods removed from StorageManager trait
+    // These methods are no longer part of the trait
 }
 
 // ===== Network Error Tests =====

dash-spv/tests/error_recovery_integration_test.rs

@@ -650,20 +650,6 @@ impl StorageManager for MockStorageManager {
         Ok(None)
     }
 
-    async fn store_terminal_block(
-        &mut self,
-        _block: &dash_spv::storage::StoredTerminalBlock,
-    ) -> dash_spv::error::StorageResult<()> {
-        Ok(())
-    }
-
-    async fn get_terminal_block(
-        &self,
-    ) -> dash_spv::error::StorageResult<Option<dash_spv::storage::StoredTerminalBlock>> {
-        Ok(None)
-    }
-
-    async fn clear_terminal_block(&mut self) -> dash_spv::error::StorageResult<()> {
-        Ok(())
-    }
+    // Terminal block methods removed from StorageManager trait
+    // These methods are no longer part of the trait
 }