chore(lint): extend low-risk clippy cleanup batch

- normalize numeric literals (115_200) in hardware/peripheral config paths

- remove test-only useless format! allocations in discord IDs

- simplify closures and auto-deref in browser/http/rag/peripherals

- keep behavior unchanged while reducing warning surface

src/rag/mod.rs

@@ -233,9 +233,7 @@ impl HardwareRag {
             if let Some(aliases) = self.pin_aliases.get(board) {
                 for (alias, pin) in aliases {
                     let alias_words: Vec<&str> = alias.split('_').collect();
-                    let matches = query_words
-                        .iter()
-                        .any(|qw| alias_words.iter().any(|aw| *aw == *qw))
+                    let matches = query_words.iter().any(|qw| alias_words.contains(qw))
                         || query_lower.contains(&alias.replace('_', " "));
                     if matches {
                         lines.push(format!("{board}: {alias} = pin {pin}"));