ci: add GitHub Actions workflows with semantic-release auto-versioning

chore: fix all 702 clippy warnings across codebase
- auto-fix 475 via cargo clippy --fix
- fix remaining 227 manually: uninlined_format_args, redundant_closure, match_same_arms,
  underscore_binding, format_push_string, items_after_statements, needless_pass_by_value,
  clone_on_copy, case_sensitive_extension, single_match/let-else, write_with_newline,
  and other clippy lints

src/tool/utility/dir_list.rs

@@ -67,13 +67,13 @@ impl Tool for DirList {
         }
 
         let entries: Vec<String> = fs::read_dir(&path)
-            .map_err(|e| anyhow!("failed to read directory '{}': {}", rel, e))?
-            .filter_map(|e| e.ok())
+            .map_err(|e| anyhow!("failed to read directory '{rel}': {e}"))?
+            .filter_map(std::result::Result::ok)
             .map(|e| {
                 let name = e.file_name().to_string_lossy().to_string();
-                let is_dir = e.file_type().map(|t| t.is_dir()).unwrap_or(false);
+                let is_dir = e.file_type().is_ok_and(|t| t.is_dir());
                 if is_dir {
-                    format!("{}/", name)
+                    format!("{name}/")
                 } else {
                     name
                 }