Add local database cleanup in resurrection test setup

Ensure tombstone_resurrection_test starts with a clean local database
by deleting any existing database from previous runs.

This prevents interference from previous test data and ensures
reproducible results.

Changes:
- Check if database exists before opening
- Delete existing database if found
- Log cleanup action for transparency

This is critical for the resurrection test scenario where we need
to control exactly when the document is created with its updatedAt
timestamp.

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

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

Author: pimpin

examples/tombstone_resurrection_test.rs

@@ -47,10 +47,20 @@ fn main() {
     get_metadata_purge_interval();
     reporter.log("");
 
+    // SETUP: Clean up local database from previous run
+    let db_name = "tombstone_resurrection_test";
+    let db_path = Path::new("./");
+
+    if Database::exists(db_name, db_path) {
+        reporter.log("SETUP: Deleting local database from previous run...");
+        Database::delete_file(db_name, db_path).expect("Failed to delete existing database");
+        reporter.log("✓ Local database cleaned\n");
+    }
+
     let mut db_cblite = Database::open(
-        "tombstone_resurrection_test",
+        db_name,
         Some(DatabaseConfiguration {
-            directory: Path::new("./"),
+            directory: db_path,
             #[cfg(feature = "enterprise")]
             encryption_key: None,
         }),