Add ModeTemplate with Svelte 5 frontend and components

- Create reusable components: auth, api-client, shared-types
- ModeTemplate with Hono backend and SvelteKit frontend
- Auth store refactored to class-based Svelte 5 pattern
- SSR-safe hydrate() pattern for localStorage access
- Frontend builds successfully with Svelte 5 runes

ModeTemplate/frontend/.svelte-kit/output/server/manifest.js

@@ -0,0 +1,47 @@
+export const manifest = (() => {
+function __memo(fn) {
+	let value;
+	return () => value ??= (value = fn());
+}
+
+return {
+	appDir: "_app",
+	appPath: "_app",
+	assets: new Set([".gitkeep"]),
+	mimeTypes: {},
+	_: {
+		client: {start:"_app/immutable/entry/start.JQZ0kVpy.js",app:"_app/immutable/entry/app.B9iOASPK.js",imports:["_app/immutable/entry/start.JQZ0kVpy.js","_app/immutable/chunks/CuIyQV9Z.js","_app/immutable/chunks/CqqhLxdp.js","_app/immutable/chunks/Bgo_ZO3W.js","_app/immutable/chunks/BtkHyJOA.js","_app/immutable/entry/app.B9iOASPK.js","_app/immutable/chunks/CqqhLxdp.js","_app/immutable/chunks/DZNd3jEa.js","_app/immutable/chunks/BtkHyJOA.js","_app/immutable/chunks/fsu08h6h.js","_app/immutable/chunks/hV77cT_P.js","_app/immutable/chunks/Bgo_ZO3W.js"],stylesheets:[],fonts:[],uses_env_dynamic_public:false},
+		nodes: [
+			__memo(() => import('./nodes/0.js')),
+			__memo(() => import('./nodes/1.js')),
+			__memo(() => import('./nodes/2.js')),
+			__memo(() => import('./nodes/3.js'))
+		],
+		remotes: {
+			
+		},
+		routes: [
+			{
+				id: "/",
+				pattern: /^\/$/,
+				params: [],
+				page: { layouts: [0,], errors: [1,], leaf: 2 },
+				endpoint: null
+			},
+			{
+				id: "/callback",
+				pattern: /^\/callback\/?$/,
+				params: [],
+				page: { layouts: [0,], errors: [1,], leaf: 3 },
+				endpoint: null
+			}
+		],
+		prerendered_routes: new Set([]),
+		matchers: async () => {
+			
+			return {  };
+		},
+		server_assets: {}
+	}
+}
+})();