feat: Reinitialize frontend with SvelteKit and TypeScript

- Delete old Vite+Svelte frontend
- Initialize new SvelteKit project with TypeScript
- Configure Tailwind CSS v4 + DaisyUI
- Implement JWT authentication with auto-refresh
- Create login page with form validation (Zod)
- Add protected route guards
- Update Docker configuration for single-stage build
- Add E2E tests with Playwright (6/11 passing)
- Fix Svelte 5 reactivity with $state() runes

Known issues:
- 5 E2E tests failing (timing/async issues)
- Token refresh implementation needs debugging
- Validation error display timing

frontend/node_modules/aria-query/lib/util/iterationDecorator.js

@@ -0,0 +1,17 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = iterationDecorator;
+var _iteratorProxy = _interopRequireDefault(require("./iteratorProxy"));
+function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
+function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
+function iterationDecorator(collection, entries) {
+  if (typeof Symbol === 'function' && _typeof(Symbol.iterator) === 'symbol') {
+    Object.defineProperty(collection, Symbol.iterator, {
+      value: _iteratorProxy.default.bind(entries)
+    });
+  }
+  return collection;
+}

frontend/node_modules/aria-query/lib/util/iteratorProxy.js

@@ -0,0 +1,32 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+// eslint-disable-next-line no-unused-vars
+function iteratorProxy() {
+  var values = this;
+  var index = 0;
+  var iter = {
+    '@@iterator': function iterator() {
+      return iter;
+    },
+    next: function next() {
+      if (index < values.length) {
+        var value = values[index];
+        index = index + 1;
+        return {
+          done: false,
+          value: value
+        };
+      } else {
+        return {
+          done: true
+        };
+      }
+    }
+  };
+  return iter;
+}
+var _default = exports.default = iteratorProxy;