fix: resolve clippy warnings (consecutive replace, map_or, collapsible if)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: fabio-rovai

src/align.rs

@@ -567,10 +567,10 @@ fn local_name(iri: &str) -> String {
 /// Normalize a label for comparison: lowercase, split camelCase, trim.
 fn normalize_label(label: &str) -> String {
     // Replace underscores and hyphens with spaces, then camelCase split
-    let cleaned = label.replace('_', " ").replace('-', " ");
+    let cleaned = label.replace(['_', '-'], " ");
     let mut result = String::with_capacity(cleaned.len() + 8);
     for (i, ch) in cleaned.chars().enumerate() {
-        if i > 0 && ch.is_uppercase() && !cleaned.as_bytes().get(i.wrapping_sub(1)).map_or(false, |c| c.is_ascii_uppercase()) {
+        if i > 0 && ch.is_uppercase() && !cleaned.as_bytes().get(i.wrapping_sub(1)).is_some_and(|c| c.is_ascii_uppercase()) {
             result.push(' ');
         }
         result.push(ch);

src/socket.rs

@@ -274,13 +274,11 @@ fn run_count_query(graph: &Arc<GraphStore>, query: &str) -> u64 {
     match graph.sparql_select(query) {
         Ok(json_str) => {
             // sparql_select returns {"variables":["c"],"results":[{"c":"\"3\"^^…"}]}
-            if let Ok(v) = serde_json::from_str::<serde_json::Value>(&json_str) {
-                if let Some(row) = v["results"].as_array().and_then(|a| a.first()) {
-                    if let Some(val) = row["c"].as_str() {
-                        // Oxigraph wraps the value like  "\"3\"^^<…integer>"
-                        return parse_sparql_integer(val);
-                    }
-                }
+            if let Ok(v) = serde_json::from_str::<serde_json::Value>(&json_str)
+                && let Some(row) = v["results"].as_array().and_then(|a| a.first())
+                && let Some(val) = row["c"].as_str() {
+                    // Oxigraph wraps the value like  "\"3\"^^<…integer>"
+                    return parse_sparql_integer(val);
             }
             0
         }