refactor: Clean lint errors and organise files

eslint.config.js

@@ -123,7 +123,7 @@ module.exports = tseslint.config(
       'complexity': ['warn',{ max:20 }],
       'curly': 'off',
       'eol-last': 'error',
-      'id-denylist': ['warn','e','cb','i','x','c','y','any','string','String','Undefined','undefined','callback'],
+      'id-denylist': ['warn','e','cb','i','c','any','string','String','Undefined','undefined','callback'],
       'max-len': ['error',{ code:150, ignoreComments:true }],
       'new-parens': 'error',
       'newline-per-chained-call': 'error',
@@ -172,7 +172,7 @@ module.exports = tseslint.config(
       // Ensure only one statement per line to prevent patterns like: if (cond) { doThing(); }
       'max-statements-per-line': ['error', { max: 1 }],
       // Prevent single-character identifiers for variables/params; do not check object property names
-      'id-length': ['error', { min: 2, properties: 'never', exceptions: ['_'] }],
+      'id-length': ['error', { min: 2, properties: 'never', exceptions: ['_', 'x', 'y'] }],
       // Require blank lines around block-like statements (if, function, class, switch, try, etc.)
       'padding-line-between-statements': [
         'error',