[repo-assist] docs: annotate unreachable guards with c8 ignore for coverage consistency

src/metricsAnalyzer/languages/jsLikeAnalyzer.ts

@@ -464,6 +464,7 @@ export class JsLikeMetricsAnalyzer {
   private getOperator(node: Parser.SyntaxNode): string | null {
     // binary_expression structure: [left, operator, right] — operator always at index 1
     const operatorNode = node.child(1);
+    /* c8 ignore next */
     if (!operatorNode) { return null; }
     const type = operatorNode.type;
     if (type === "&&" || type === "||" || type === "??") { return type; }

src/metricsAnalyzer/languages/pythonAnalyzer.ts

@@ -173,6 +173,7 @@ export class PythonMetricsAnalyzer {
     const functionName = this.getFunctionName(node, className);
 
     const body = node.childForFieldName("body");
+    /* c8 ignore next 3 */
     if (!body) {
       return null;
     }