chore: resolve clippy warnings for pre-push audit

server/tests/image_test.rs

@@ -1,7 +1,6 @@
-use image::DynamicImage;
 #[test]
 fn test_img() {
     let mut img = image::DynamicImage::new_rgb8(10, 10);
     img.invert();
-    let img2 = img.adjust_contrast(20.0);
+    let _img2 = img.adjust_contrast(20.0);
 }

server/tests/parity_test.rs

@@ -101,9 +101,10 @@ fn test_dashboard_route_parity() {
     let mut registered_routes = HashSet::new();
     for part in setup_content.split(".route(") {
         let trimmed = part.trim_start();
-        if trimmed.starts_with('"') {
-            if let Some(end_quote) = trimmed[1..].find('"') {
-                let route = &trimmed[1..=end_quote];
+        #[allow(clippy::collapsible_if)]
+        if let Some(stripped) = trimmed.strip_prefix('"') {
+            if let Some(end_quote) = stripped.find('"') {
+                let route = &stripped[..end_quote];
                 registered_routes.insert(route.to_string());
             }
         }
@@ -119,8 +120,10 @@ fn test_dashboard_route_parity() {
         let rest = &dashboard_content[start..];
         let quote_char = dashboard_content[..start].chars().last();
         let mut endpoint = String::new();
+        #[allow(clippy::collapsible_if)]
         if let Some(q) = quote_char {
-            if q == '`' || q == '"' || q == '\'' {
+            let is_quote = q == '`' || q == '"' || q == '\'';
+            if is_quote {
                 if let Some(close_idx) = rest.find(q) {
                     let full_call = &rest[..close_idx];
                     let clean = if let Some(q_idx) = full_call.find('?') {