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-meter-element/HTMLMeterElement.d.ts

@@ -0,0 +1,89 @@
+import HTMLElement from '../html-element/HTMLElement.js';
+import HTMLLabelElement from '../html-label-element/HTMLLabelElement.js';
+import NodeList from '../node/NodeList.js';
+/**
+ * HTMLMeterElement
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLMeterElement
+ */
+export default class HTMLMeterElement extends HTMLElement {
+    /**
+     * Returns high.
+     *
+     * @returns High.
+     */
+    get high(): number;
+    /**
+     * Sets high.
+     *
+     * @param high High.
+     */
+    set high(high: number);
+    /**
+     * Returns low.
+     *
+     * @returns Low.
+     */
+    get low(): number;
+    /**
+     * Sets low.
+     *
+     * @param low Low.
+     */
+    set low(low: number);
+    /**
+     * Returns max.
+     *
+     * @returns Max.
+     */
+    get max(): number;
+    /**
+     * Sets max.
+     *
+     * @param max Max.
+     */
+    set max(max: number);
+    /**
+     * Returns min.
+     *
+     * @returns Min.
+     */
+    get min(): number;
+    /**
+     * Sets min.
+     *
+     * @param min Min.
+     */
+    set min(min: number);
+    /**
+     * Returns optimum.
+     *
+     * @returns Optimum.
+     */
+    get optimum(): number;
+    /**
+     * Sets optimum.
+     *
+     * @param optimum Optimum.
+     */
+    set optimum(optimum: number);
+    /**
+     * Returns value.
+     *
+     * @returns Value.
+     */
+    get value(): number;
+    /**
+     * Sets value.
+     *
+     * @param value Value.
+     */
+    set value(value: number);
+    /**
+     * Returns the associated label elements.
+     *
+     * @returns Label elements.
+     */
+    get labels(): NodeList<HTMLLabelElement>;
+}
+//# sourceMappingURL=HTMLMeterElement.d.ts.map