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/happy-dom/lib/nodes/html-field-set-element/HTMLFieldSetElement.d.ts

@@ -0,0 +1,99 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import HTMLCollection from '../element/HTMLCollection.js';
+import HTMLInputElement from '../html-input-element/HTMLInputElement.js';
+import HTMLTextAreaElement from '../html-text-area-element/HTMLTextAreaElement.js';
+import HTMLSelectElement from '../html-select-element/HTMLSelectElement.js';
+import HTMLButtonElement from '../html-button-element/HTMLButtonElement.js';
+import HTMLFormElement from '../html-form-element/HTMLFormElement.js';
+type THTMLFieldSetElement = HTMLInputElement | HTMLButtonElement | HTMLTextAreaElement | HTMLSelectElement;
+/**
+ * HTMLFieldSetElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLFieldSetElement
+ */
+export default class HTMLFieldSetElement extends HTMLElement {
+    cloneNode: (deep?: boolean) => HTMLFieldSetElement;
+    [PropertySymbol.elements]: HTMLCollection<THTMLFieldSetElement> | null;
+    [PropertySymbol.formNode]: HTMLFormElement | null;
+    /**
+     * Returns elements.
+     *
+     * @returns Elements.
+     */
+    get elements(): HTMLCollection<THTMLFieldSetElement>;
+    /**
+     * Returns the parent form element.
+     *
+     * @returns Form.
+     */
+    get form(): HTMLFormElement;
+    /**
+     * Returns name.
+     *
+     * @returns Name.
+     */
+    get name(): string;
+    /**
+     * Sets name.
+     *
+     * @param name Name.
+     */
+    set name(name: string);
+    /**
+     * Returns type "fieldset".
+     *
+     * @returns Type.
+     */
+    get type(): string;
+    /**
+     * Returns empty string as fieldset never candidates for constraint validation.
+     */
+    get validationMessage(): string;
+    /**
+     * Returns will validate state.
+     *
+     * Always returns false as fieldset never candidates for constraint validation.
+     *
+     * @returns Will validate state.
+     */
+    get willValidate(): boolean;
+    /**
+     * Returns disabled.
+     *
+     * @returns Disabled.
+     */
+    get disabled(): boolean;
+    /**
+     * Sets disabled.
+     *
+     * @param disabled Disabled.
+     */
+    set disabled(disabled: boolean);
+    /**
+     * Checks validity.
+     *
+     * Always returns true as fieldset never candidates for constraint validation.
+     *
+     * @returns "true" if the field is valid.
+     */
+    checkValidity(): boolean;
+    /**
+     * Reports validity.
+     *
+     * Always returns true as fieldset never candidates for constraint validation.
+     *
+     * @returns Validity.
+     */
+    reportValidity(): boolean;
+    /**
+     * Sets validation message.
+     *
+     * Does nothing as fieldset never candidates for constraint validation.
+     *
+     * @param _message Message.
+     */
+    setCustomValidity(_message: string): void;
+}
+export {};
+//# sourceMappingURL=HTMLFieldSetElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/html-field-set-element/HTMLFieldSetElement.d.ts.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/lib/nodes/html-field-set-element/HTMLFieldSetElement.js

@@ -0,0 +1,132 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import HTMLCollection from '../element/HTMLCollection.js';
+import QuerySelector from '../../query-selector/QuerySelector.js';
+/**
+ * HTMLFieldSetElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLFieldSetElement
+ */
+export default class HTMLFieldSetElement extends HTMLElement {
+    // Internal properties
+    [PropertySymbol.elements] = null;
+    [PropertySymbol.formNode] = null;
+    /**
+     * Returns elements.
+     *
+     * @returns Elements.
+     */
+    get elements() {
+        if (!this[PropertySymbol.elements]) {
+            this[PropertySymbol.elements] = new HTMLCollection(PropertySymbol.illegalConstructor, () => (QuerySelector.querySelectorAll(this, 'input,button,textarea,select')[PropertySymbol.items]));
+        }
+        return this[PropertySymbol.elements];
+    }
+    /**
+     * Returns the parent form element.
+     *
+     * @returns Form.
+     */
+    get form() {
+        if (this[PropertySymbol.formNode]) {
+            return this[PropertySymbol.formNode];
+        }
+        const id = this.getAttribute('form');
+        if (!id || !this[PropertySymbol.isConnected]) {
+            return null;
+        }
+        return this[PropertySymbol.ownerDocument].getElementById(id);
+    }
+    /**
+     * Returns name.
+     *
+     * @returns Name.
+     */
+    get name() {
+        return this.getAttribute('name') || '';
+    }
+    /**
+     * Sets name.
+     *
+     * @param name Name.
+     */
+    set name(name) {
+        this.setAttribute('name', name);
+    }
+    /**
+     * Returns type "fieldset".
+     *
+     * @returns Type.
+     */
+    get type() {
+        return 'fieldset';
+    }
+    /**
+     * Returns empty string as fieldset never candidates for constraint validation.
+     */
+    get validationMessage() {
+        return '';
+    }
+    /**
+     * Returns will validate state.
+     *
+     * Always returns false as fieldset never candidates for constraint validation.
+     *
+     * @returns Will validate state.
+     */
+    get willValidate() {
+        return false;
+    }
+    /**
+     * Returns disabled.
+     *
+     * @returns Disabled.
+     */
+    get disabled() {
+        return this.getAttribute('disabled') !== null;
+    }
+    /**
+     * Sets disabled.
+     *
+     * @param disabled Disabled.
+     */
+    set disabled(disabled) {
+        if (!disabled) {
+            this.removeAttribute('disabled');
+        }
+        else {
+            this.setAttribute('disabled', '');
+        }
+    }
+    /**
+     * Checks validity.
+     *
+     * Always returns true as fieldset never candidates for constraint validation.
+     *
+     * @returns "true" if the field is valid.
+     */
+    checkValidity() {
+        return true;
+    }
+    /**
+     * Reports validity.
+     *
+     * Always returns true as fieldset never candidates for constraint validation.
+     *
+     * @returns Validity.
+     */
+    reportValidity() {
+        return true;
+    }
+    /**
+     * Sets validation message.
+     *
+     * Does nothing as fieldset never candidates for constraint validation.
+     *
+     * @param _message Message.
+     */
+    setCustomValidity(_message) {
+        // Do nothing as fieldset never candidates for constraint validation.
+    }
+}
+//# sourceMappingURL=HTMLFieldSetElement.js.map

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