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/cookie/enums/CookieSameSiteEnum.d.ts

@@ -0,0 +1,7 @@
+declare enum CookieSameSiteEnum {
+    strict = "Strict",
+    lax = "Lax",
+    none = "None"
+}
+export default CookieSameSiteEnum;
+//# sourceMappingURL=CookieSameSiteEnum.d.ts.map

frontend/node_modules/happy-dom/lib/cookie/enums/CookieSameSiteEnum.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieSameSiteEnum.d.ts","sourceRoot":"","sources":["../../../src/cookie/enums/CookieSameSiteEnum.ts"],"names":[],"mappings":"AAAA,aAAK,kBAAkB;IACtB,MAAM,WAAW;IACjB,GAAG,QAAQ;IACX,IAAI,SAAS;CACb;AACD,eAAe,kBAAkB,CAAC"}

frontend/node_modules/happy-dom/lib/cookie/enums/CookieSameSiteEnum.js

@@ -0,0 +1,8 @@
+var CookieSameSiteEnum;
+(function (CookieSameSiteEnum) {
+    CookieSameSiteEnum["strict"] = "Strict";
+    CookieSameSiteEnum["lax"] = "Lax";
+    CookieSameSiteEnum["none"] = "None";
+})(CookieSameSiteEnum || (CookieSameSiteEnum = {}));
+export default CookieSameSiteEnum;
+//# sourceMappingURL=CookieSameSiteEnum.js.map

frontend/node_modules/happy-dom/lib/cookie/enums/CookieSameSiteEnum.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieSameSiteEnum.js","sourceRoot":"","sources":["../../../src/cookie/enums/CookieSameSiteEnum.ts"],"names":[],"mappings":"AAAA,IAAK,kBAIJ;AAJD,WAAK,kBAAkB;IACtB,uCAAiB,CAAA;IACjB,iCAAW,CAAA;IACX,mCAAa,CAAA;AACd,CAAC,EAJI,kBAAkB,KAAlB,kBAAkB,QAItB;AACD,eAAe,kBAAkB,CAAC"}