chore: restore checker CI gate

crates/cph-model/src/lib.rs

@@ -737,7 +737,11 @@ fn parse_target(name: String, value: toml::Value, diags: &mut Vec<Diagnostic>) -
 /// A well-formed but empty `covers = []` yields `Some(vec![])`: a target that
 /// explicitly renders no kind (every used kind then draws a `renderIgnored`
 /// warning) — distinct from an absent key.
-fn parse_covers(name: &str, value: toml::Value, diags: &mut Vec<Diagnostic>) -> Option<Vec<String>> {
+fn parse_covers(
+    name: &str,
+    value: toml::Value,
+    diags: &mut Vec<Diagnostic>,
+) -> Option<Vec<String>> {
     let items = match value {
         toml::Value::Array(items) => items,
         _ => {

crates/cph-model/tests/load.rs

@@ -324,7 +324,11 @@ fn cph_version_mismatch_is_an_error_diagnostic() {
         .iter()
         .filter(|d| d.code == DiagCode::CphVersionMismatch)
         .collect();
-    assert_eq!(mm.len(), 1, "expected one CphVersionMismatch, got {diags:?}");
+    assert_eq!(
+        mm.len(),
+        1,
+        "expected one CphVersionMismatch, got {diags:?}"
+    );
     assert!(
         mm[0].message.contains("99.99.99") && mm[0].message.contains(CPH_VERSION),
         "diagnostic should name both versions, got: {}",