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/svg-fe-merge-node-element/SVGFEMergeNodeElement.d.ts

@@ -0,0 +1,18 @@
+import SVGElement from '../svg-element/SVGElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import SVGAnimatedString from '../../svg/SVGAnimatedString.js';
+/**
+ * SVGFEMergeNodeElement.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/SVGFEMergeNodeElement
+ */
+export default class SVGFEMergeNodeElement extends SVGElement {
+    [PropertySymbol.in1]: SVGAnimatedString | null;
+    /**
+     * Returns in1.
+     *
+     * @returns In1.
+     */
+    get in1(): SVGAnimatedString;
+}
+//# sourceMappingURL=SVGFEMergeNodeElement.d.ts.map

frontend/node_modules/happy-dom/lib/nodes/svg-fe-merge-node-element/SVGFEMergeNodeElement.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"SVGFEMergeNodeElement.d.ts","sourceRoot":"","sources":["../../../src/nodes/svg-fe-merge-node-element/SVGFEMergeNodeElement.ts"],"names":[],"mappings":"AAAA,OAAO,UAAU,MAAM,8BAA8B,CAAC;AACtD,OAAO,KAAK,cAAc,MAAM,yBAAyB,CAAC;AAC1D,OAAO,iBAAiB,MAAM,gCAAgC,CAAC;AAE/D;;;;GAIG;AACH,MAAM,CAAC,OAAO,OAAO,qBAAsB,SAAQ,UAAU;IAErD,CAAC,cAAc,CAAC,GAAG,CAAC,EAAE,iBAAiB,GAAG,IAAI,CAAQ;IAE7D;;;;OAIG;IACH,IAAW,GAAG,IAAI,iBAAiB,CAYlC;CACD"}

frontend/node_modules/happy-dom/lib/nodes/svg-fe-merge-node-element/SVGFEMergeNodeElement.js

@@ -0,0 +1,27 @@
+import SVGElement from '../svg-element/SVGElement.js';
+import * as PropertySymbol from '../../PropertySymbol.js';
+import SVGAnimatedString from '../../svg/SVGAnimatedString.js';
+/**
+ * SVGFEMergeNodeElement.
+ *
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/SVGFEMergeNodeElement
+ */
+export default class SVGFEMergeNodeElement extends SVGElement {
+    // Internal properties
+    [PropertySymbol.in1] = null;
+    /**
+     * Returns in1.
+     *
+     * @returns In1.
+     */
+    get in1() {
+        if (!this[PropertySymbol.in1]) {
+            this[PropertySymbol.in1] = new SVGAnimatedString(PropertySymbol.illegalConstructor, this[PropertySymbol.window], {
+                getAttribute: () => this.getAttribute('in'),
+                setAttribute: (value) => this.setAttribute('in', value)
+            });
+        }
+        return this[PropertySymbol.in1];
+    }
+}
+//# sourceMappingURL=SVGFEMergeNodeElement.js.map

frontend/node_modules/happy-dom/lib/nodes/svg-fe-merge-node-element/SVGFEMergeNodeElement.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"SVGFEMergeNodeElement.js","sourceRoot":"","sources":["../../../src/nodes/svg-fe-merge-node-element/SVGFEMergeNodeElement.ts"],"names":[],"mappings":"AAAA,OAAO,UAAU,MAAM,8BAA8B,CAAC;AACtD,OAAO,KAAK,cAAc,MAAM,yBAAyB,CAAC;AAC1D,OAAO,iBAAiB,MAAM,gCAAgC,CAAC;AAE/D;;;;GAIG;AACH,MAAM,CAAC,OAAO,OAAO,qBAAsB,SAAQ,UAAU;IAC5D,sBAAsB;IACf,CAAC,cAAc,CAAC,GAAG,CAAC,GAA6B,IAAI,CAAC;IAE7D;;;;OAIG;IACH,IAAW,GAAG;QACb,IAAI,CAAC,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,EAAE,CAAC;YAC/B,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,GAAG,IAAI,iBAAiB,CAC/C,cAAc,CAAC,kBAAkB,EACjC,IAAI,CAAC,cAAc,CAAC,MAAM,CAAC,EAC3B;gBACC,YAAY,EAAE,GAAG,EAAE,CAAC,IAAI,CAAC,YAAY,CAAC,IAAI,CAAC;gBAC3C,YAAY,EAAE,CAAC,KAAK,EAAE,EAAE,CAAC,IAAI,CAAC,YAAY,CAAC,IAAI,EAAE,KAAK,CAAC;aACvD,CACD,CAAC;QACH,CAAC;QACD,OAAO,IAAI,CAAC,cAAc,CAAC,GAAG,CAAC,CAAC;IACjC,CAAC;CACD"}