chore: align eslint config with ainative approach

- Add typescript-eslint parser for .svelte.ts and <script lang='ts'>
- Disable no-console (CoT logging is intentional)
- Downgrade require-each-key and no-navigation-without-resolve to warn
- Add Svelte 5 runes (, , etc.) as globals for .svelte.ts

frontend/eslint.config.js

@@ -1,23 +1,71 @@
 import svelte from "eslint-plugin-svelte";
 import js from "@eslint/js";
 import globals from "globals";
+import tseslint from "typescript-eslint";
 
 export default [
   js.configs.recommended,
   ...svelte.configs["flat/recommended"],
+
+  // Global language options (applies to all files)
   {
     languageOptions: {
       globals: { ...globals.browser, ...globals.node },
     },
-    rules: {
-      "no-unused-vars": ["error", { argsIgnorePattern: "^_" }],
-      "no-console": ["warn", { allow: ["info", "warn", "error"] }],
+  },
+
+  // .svelte.ts files (Svelte 5 rune stores/models) — parse as TypeScript
+  {
+    files: ["**/*.svelte.ts"],
+    languageOptions: {
+      parser: tseslint.parser,
+      globals: {
+        $state: "readonly",
+        $derived: "readonly",
+        $effect: "readonly",
+        $props: "readonly",
+        $bindable: "readonly",
+        $inspect: "readonly",
+      },
     },
   },
+
+  // .svelte files with <script lang="ts"> — use TS parser inside Svelte
+  {
+    files: ["**/*.svelte"],
+    languageOptions: {
+      parserOptions: {
+        parser: tseslint.parser,
+      },
+    },
+  },
+
+  // Global rules — ainative-осознанные настройки
+  {
+    rules: {
+      // CoT-логирование — intentional, не блокировать
+      "no-console": "off",
+
+      // Неиспользуемые переменные — error с игнором _префикса
+      "no-unused-vars": ["error", { argsIgnorePattern: "^_" }],
+
+      // {#each key} — warn вместо error для быстрых итераций
+      "svelte/require-each-key": "warn",
+
+      // goto/href без resolve() — warn вместо error
+      "svelte/no-navigation-without-resolve": "warn",
+    },
+  },
+
+  // Игноры
   {
     ignores: [
-      "node_modules/", "dist/", "build/",
-      ".svelte-kit/", ".vite/", "coverage/",
+      "node_modules/",
+      "dist/",
+      "build/",
+      ".svelte-kit/",
+      ".vite/",
+      "coverage/",
     ],
   },
 ];

frontend/package.json

@@ -31,6 +31,7 @@
     "postcss": "^8.4.0",
     "svelte": "^5.43.8",
     "tailwindcss": "^3.0.0",
+    "typescript-eslint": "^8.60.1",
     "vite": "^7.2.4",
     "vitest": "^4.0.18"
   },