[sc-441] Fix CI warnings

cspell.json

@@ -42,6 +42,7 @@
     "namegen",
     "nams",
     "numop",
+    "nums",
     "oper",
     "opre",
     "oprune",

src/term/parser/parser.rs

@@ -405,12 +405,10 @@ where
       .map(Pattern::Lst)
       .boxed();
 
-    let num_val = any()
+    let num_val = any().filter(|t| matches!(t, Token::Num(_))).map(|t| {
-      .filter(|t| matches!(t, Token::Num(_)))
+      let Token::Num(n) = t else { unreachable!() };
-      .map(|t| {
+      n
-        let Token::Num(n) = t else { unreachable!() };
+    });
-        n
-      });
 
     let num = num_val.map(|n| Pattern::Num(NumCtr::Num(n))).labelled("<Num>");