add eslint-plugin-import-x, fix google maps typing

eslint.config.js

@@ -4,13 +4,16 @@ import { includeIgnoreFile } from '@eslint/compat';
 import globals from 'globals';
 import { fileURLToPath } from 'node:url';
 import ts from 'typescript-eslint';
+import { importX } from 'eslint-plugin-import-x';
+
 const gitignorePath = fileURLToPath(new URL('.gitignore', import.meta.url));
 
 export default ts.config(
 	includeIgnoreFile(gitignorePath),
 	js.configs.recommended,
 	...ts.configs.recommended,
-	prettier,
+	importX.flatConfigs.recommended,
+	importX.flatConfigs.typescript,
 	{
 		languageOptions: {
 			globals: {
@@ -19,19 +22,28 @@ export default ts.config(
 			}
 		}
 	},
-	{
-		files: ['**/*.svelte'],
-
-		languageOptions: {
-			parserOptions: {
-				parser: ts.parser
-			}
-		}
-	},
 	{
 		rules: {
 			'@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
 			'no-undef': 'off'
 		}
-	}
+	},
+	{
+		settings: {
+			'import-x/resolver': {
+				typescript: true,
+				node: true
+			}
+		},
+		rules: {
+			// import-x/recommended is noisy for TS/Svelte; align with local resolution story.
+			'import-x/no-unresolved': 'off',
+			'import-x/no-named-as-default-member': 'off',
+			// Was only enabled for *.svelte*; enable for all linted modules so TS/JS cycles are visible too.
+			// Note: skips type-only import edges; maxDepth limits search (use a large number or '∞' if cycles are deeper).
+			'import-x/no-cycle': ['error', { maxDepth: 5, ignoreExternal: true }]
+		}
+	},
+	// Last: turns off stylistic rules that conflict with Prettier (must not be overridden by later blocks).
+	prettier
 );