fix: resolve clippy style lints and refresh stale docs

Unblock Lint & Format (is_some_and / trim_split_whitespace) and update
docs linked to Makefile/CONTRIBUTING after the cleanup consolidation.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: Goodnessukaigwe

docs/development.md

@@ -1,9 +1,11 @@
 # Local Development with k3d
 
-<!-- chart-sync: 2026-07-29T12:00Z Dockerfile cargo-chef latest-rust-1.95-slim-bookworm -->
+<!-- chart-sync: 2026-07-30T04:00Z Dockerfile cargo-chef latest-rust-1.95-slim-bookworm -->
 
 This guide walks you through setting up a fully functional Stellar development environment on your local machine using [k3d](https://k3d.io) — K3s running inside Docker. No cloud account required.
 
+For repository scratch cleanup and contributor gates, see root [`DEVELOPMENT.md`](../DEVELOPMENT.md) (`make cleanup`, `make health`) and [`CONTRIBUTING.md`](../CONTRIBUTING.md).
+
 ---
 
 ## Prerequisites

docs/stale-docs-detector.md

@@ -4,7 +4,7 @@
 > is flagged as _stale_.  CI will fail.  Update the doc (or suppress the false
 > positive), then push.
 >
-> Last refreshed: 2026-07-29 (Makefile / CI wiring updates).
+> Last refreshed: 2026-07-30 (Makefile cleanup target / CONTRIBUTING script conventions).
 
 ---
 

src/commands/health_check.rs

@@ -168,7 +168,7 @@ fn check_issue_template_metadata() -> Check {
                 .filter(|e| {
                     let path = e.path();
                     path.extension()
-                        .map_or(false, |ext| ext == "yml" || ext == "yaml")
+                        .is_some_and(|ext| ext == "yml" || ext == "yaml")
                 })
                 .count();
 

src/infra.rs

@@ -190,7 +190,6 @@ fn sanitize_generation(value: &str) -> String {
         .replace("zen3", "Zen 3");
 
     cleaned
-        .trim()
         .split_whitespace()
         .map(|word| {
             let mut chars = word.chars();