chore: reduce frontend lint warnings

scripts/static-analysis.mjs

@@ -1,4 +1,4 @@
-import { readdirSync, readFileSync, statSync } from 'fs';
+import { readdirSync, readFileSync } from 'fs';
 import { join, relative } from 'path';
 
 const SRC = join(import.meta.dirname, '..', 'src');
@@ -114,7 +114,6 @@ for (const r of results) {
 console.log('\n=== HIGH COMPLEXITY: Deep nesting ===');
 for (const r of results) {
   const lines = r.content.split('\n');
-  let maxIndent = 0;
   for (let i = 0; i < lines.length; i++) {
     const line = lines[i];
     if (line.trim() === '') continue;