fix: resolve compilation errors by fixing reserved keyword usage and removing unused imports

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/tests/common/test_helpers.rs

@@ -1,6 +1,6 @@
 //! Common test utilities and helper functions to reduce duplication in tests
 
-use tempfile::{TempDir, TempPath};
+use tempfile::TempDir;
 use std::fs::File;
 use std::io::Write;
 use std::path::PathBuf;
@@ -188,7 +188,7 @@ pub fn create_nested_temp_dir_structure(dir: &TempDir) -> (PathBuf, PathBuf, Pat
 pub fn create_temp_file_with_random_binary_content(dir: &TempDir, filename: &str, size: usize) -> PathBuf {
     use rand::Rng;
     let mut rng = rand::thread_rng();
-    let random_data: Vec<u8> = (0..size).map(|_| rng.gen()).collect();
+    let random_data: Vec<u8> = (0..size).map(|_| rng.gen::<u8>()).collect();
     create_temp_file_with_binary_content(dir, filename, &random_data)
 }
 

src/tests/compression/gzip_tests.rs

@@ -2,7 +2,7 @@
 mod tests {
     use crate::compression_engine::gzip::CompressionEngineGZip;
     use crate::compression_engine::CompressionEngine;
-    use crate::tests::common::test_helpers::{test_compression_engine, create_temp_dir};
+    use crate::tests::common::test_helpers::test_compression_engine;
 
     #[test]
     fn test_compression_engine_gzip() {

src/tests/compression/lz4_tests.rs

@@ -1,8 +1,7 @@
 #[cfg(test)]
 mod tests {
     use crate::compression_engine::lz4::CompressionEngineLZ4;
-    use crate::compression_engine::CompressionEngine;
+    use crate::tests::common::test_helpers::test_compression_engine;
-    use crate::tests::common::test_helpers::{test_compression_engine, create_temp_dir};
 
     #[test]
     fn test_compression_engine_lz4() {

src/tests/compression/none_tests.rs

@@ -1,7 +1,6 @@
 #[cfg(test)]
 mod tests {
     use crate::compression_engine::none::CompressionEngineNone;
-    use crate::compression_engine::CompressionEngine;
     use crate::tests::common::test_helpers::test_compression_engine;
 
     #[test]

src/tests/db/item_tests.rs

@@ -1,6 +1,6 @@
 #[cfg(test)]
 mod tests {
-    use crate::tests::common::test_helpers::{create_temp_db, create_test_item};
+    use crate::tests::common::test_helpers::create_temp_db;
     use crate::db;
 
     #[test]

src/tests/modes/delete_tests.rs

@@ -1,7 +1,6 @@
 #[cfg(test)]
 mod tests {
     use crate::tests::common::test_helpers::{create_temp_dir, create_empty_temp_file};
-    use std::fs::File;
 
     #[test]
     fn test_delete_mode_setup() {