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/urilities/CookieExpireUtility.d.ts

@@ -0,0 +1,14 @@
+import ICookie from '../ICookie.js';
+/**
+ * Cookie expire utility.
+ */
+export default class CookieExpireUtility {
+    /**
+     * Returns "true" if cookie has expired.
+     *
+     * @param cookie Cookie.
+     * @returns "true" if cookie has expired.
+     */
+    static hasExpired(cookie: ICookie): boolean | null;
+}
+//# sourceMappingURL=CookieExpireUtility.d.ts.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieExpireUtility.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieExpireUtility.d.ts","sourceRoot":"","sources":["../../../src/cookie/urilities/CookieExpireUtility.ts"],"names":[],"mappings":"AAAA,OAAO,OAAO,MAAM,eAAe,CAAC;AAEpC;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,mBAAmB;IACvC;;;;;OAKG;WACW,UAAU,CAAC,MAAM,EAAE,OAAO,GAAG,OAAO,GAAG,IAAI;CAGzD"}

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieExpireUtility.js

@@ -0,0 +1,15 @@
+/**
+ * Cookie expire utility.
+ */
+export default class CookieExpireUtility {
+    /**
+     * Returns "true" if cookie has expired.
+     *
+     * @param cookie Cookie.
+     * @returns "true" if cookie has expired.
+     */
+    static hasExpired(cookie) {
+        return cookie.expires && cookie.expires.getTime() < Date.now();
+    }
+}
+//# sourceMappingURL=CookieExpireUtility.js.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieExpireUtility.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieExpireUtility.js","sourceRoot":"","sources":["../../../src/cookie/urilities/CookieExpireUtility.ts"],"names":[],"mappings":"AAEA;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,mBAAmB;IACvC;;;;;OAKG;IACI,MAAM,CAAC,UAAU,CAAC,MAAe;QACvC,OAAO,MAAM,CAAC,OAAO,IAAI,MAAM,CAAC,OAAO,CAAC,OAAO,EAAE,GAAG,IAAI,CAAC,GAAG,EAAE,CAAC;IAChE,CAAC;CACD"}

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieStringUtility.d.ts

@@ -0,0 +1,23 @@
+import URL from '../../url/URL.js';
+import ICookie from '../ICookie.js';
+/**
+ * Cookie string.
+ */
+export default class CookieStringUtility {
+    /**
+     * Returns cookie.
+     *
+     * @param originURL Origin URL.
+     * @param cookieString Cookie string.
+     * @returns Cookie.
+     */
+    static stringToCookie(originURL: URL, cookieString: string): ICookie | null;
+    /**
+     * Returns cookie string with key and value.
+     *
+     * @param cookies Cookies.
+     * @returns Cookie string.
+     */
+    static cookiesToString(cookies: ICookie[]): string;
+}
+//# sourceMappingURL=CookieStringUtility.d.ts.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieStringUtility.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieStringUtility.d.ts","sourceRoot":"","sources":["../../../src/cookie/urilities/CookieStringUtility.ts"],"names":[],"mappings":"AACA,OAAO,GAAG,MAAM,kBAAkB,CAAC;AACnC,OAAO,OAAO,MAAM,eAAe,CAAC;AAGpC;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,mBAAmB;IACvC;;;;;;OAMG;WACW,cAAc,CAAC,SAAS,EAAE,GAAG,EAAE,YAAY,EAAE,MAAM,GAAG,OAAO,GAAG,IAAI;IA6ElF;;;;;OAKG;WACW,eAAe,CAAC,OAAO,EAAE,OAAO,EAAE,GAAG,MAAM;CAazD"}

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieStringUtility.js

@@ -0,0 +1,98 @@
+import CookieSameSiteEnum from '../enums/CookieSameSiteEnum.js';
+import DefaultCookie from '../DefaultCookie.js';
+/**
+ * Cookie string.
+ */
+export default class CookieStringUtility {
+    /**
+     * Returns cookie.
+     *
+     * @param originURL Origin URL.
+     * @param cookieString Cookie string.
+     * @returns Cookie.
+     */
+    static stringToCookie(originURL, cookieString) {
+        const parts = cookieString.split(';');
+        const part = parts.shift();
+        const index = part.indexOf('=');
+        const key = index !== -1 ? part.slice(0, index).trim() : part.trim();
+        const value = index !== -1 ? part.slice(index + 1).trim() : null;
+        const cookie = Object.assign({}, DefaultCookie, {
+            // Required
+            key,
+            value,
+            originURL
+        });
+        // Invalid if key is empty.
+        if (!cookie.key) {
+            return null;
+        }
+        for (const part of parts) {
+            const index = part.indexOf('=');
+            const key = index !== -1 ? part.slice(0, index).trim().toLowerCase() : part.trim().toLowerCase();
+            const value = index !== -1 ? part.slice(index + 1).trim() : '';
+            switch (key) {
+                case 'expires':
+                    cookie.expires = new Date(value);
+                    break;
+                case 'max-age':
+                    cookie.expires = new Date(parseInt(value, 10) * 1000 + Date.now());
+                    break;
+                case 'domain':
+                    cookie.domain = value;
+                    break;
+                case 'path':
+                    cookie.path = value[0] === '/' ? value : `/${value}`;
+                    break;
+                case 'httponly':
+                    cookie.httpOnly = true;
+                    break;
+                case 'secure':
+                    cookie.secure = true;
+                    break;
+                case 'samesite':
+                    switch (value.toLowerCase()) {
+                        case 'strict':
+                            cookie.sameSite = CookieSameSiteEnum.strict;
+                            break;
+                        case 'lax':
+                            cookie.sameSite = CookieSameSiteEnum.lax;
+                            break;
+                        case 'none':
+                            cookie.sameSite = CookieSameSiteEnum.none;
+                    }
+                    break;
+            }
+        }
+        const lowerKey = cookie.key.toLowerCase();
+        // Invalid if __secure- prefix is used and cookie is not secure.
+        if (lowerKey.startsWith('__secure-') && !cookie.secure) {
+            return null;
+        }
+        // Invalid if __host- prefix is used and cookie is not secure, not on root path or has a domain.
+        if (lowerKey.startsWith('__host-') &&
+            (!cookie.secure || cookie.path !== '/' || cookie.domain)) {
+            return null;
+        }
+        return cookie;
+    }
+    /**
+     * Returns cookie string with key and value.
+     *
+     * @param cookies Cookies.
+     * @returns Cookie string.
+     */
+    static cookiesToString(cookies) {
+        const cookieString = [];
+        for (const cookie of cookies) {
+            if (cookie.value !== null) {
+                cookieString.push(`${cookie.key}=${cookie.value}`);
+            }
+            else {
+                cookieString.push(cookie.key);
+            }
+        }
+        return cookieString.join('; ');
+    }
+}
+//# sourceMappingURL=CookieStringUtility.js.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieStringUtility.js.map

@@ -0,0 +1 @@
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frontend/node_modules/happy-dom/lib/cookie/urilities/CookieURLUtility.d.ts

@@ -0,0 +1,16 @@
+import URL from '../../url/URL.js';
+import ICookie from '../ICookie.js';
+/**
+ * Cookie string.
+ */
+export default class CookieURLUtility {
+    /**
+     * Returns "true" if cookie matches URL.
+     *
+     * @param cookie Cookie.
+     * @param url URL.
+     * @returns "true" if cookie matches URL.
+     */
+    static cookieMatchesURL(cookie: ICookie, url: URL): boolean;
+}
+//# sourceMappingURL=CookieURLUtility.d.ts.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieURLUtility.d.ts.map

@@ -0,0 +1 @@
+{"version":3,"file":"CookieURLUtility.d.ts","sourceRoot":"","sources":["../../../src/cookie/urilities/CookieURLUtility.ts"],"names":[],"mappings":"AACA,OAAO,GAAG,MAAM,kBAAkB,CAAC;AACnC,OAAO,OAAO,MAAM,eAAe,CAAC;AAEpC;;GAEG;AACH,MAAM,CAAC,OAAO,OAAO,gBAAgB;IACpC;;;;;;OAMG;WACW,gBAAgB,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,GAAG,GAAG,OAAO;CAWlE"}

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieURLUtility.js

@@ -0,0 +1,23 @@
+import CookieSameSiteEnum from '../enums/CookieSameSiteEnum.js';
+/**
+ * Cookie string.
+ */
+export default class CookieURLUtility {
+    /**
+     * Returns "true" if cookie matches URL.
+     *
+     * @param cookie Cookie.
+     * @param url URL.
+     * @returns "true" if cookie matches URL.
+     */
+    static cookieMatchesURL(cookie, url) {
+        const isLocalhost = url.hostname === 'localhost' || url.hostname.endsWith('.localhost');
+        return ((!cookie.secure || url.protocol === 'https:' || isLocalhost) &&
+            (!cookie.domain || url.hostname.endsWith(cookie.domain)) &&
+            (!cookie.path || url.pathname.startsWith(cookie.path)) &&
+            // @see https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Set-Cookie#samesitesamesite-value
+            ((cookie.sameSite === CookieSameSiteEnum.none && cookie.secure) ||
+                cookie.originURL.hostname === url.hostname));
+    }
+}
+//# sourceMappingURL=CookieURLUtility.js.map

frontend/node_modules/happy-dom/lib/cookie/urilities/CookieURLUtility.js.map

@@ -0,0 +1 @@
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