init: media-center v2

Rewrite of ESH-Media v1 with separated main/renderer/shared architecture
(vite-plugin-electron, React 18, react-router-dom). Includes NeDB storage,
electron-store config, proxy manager with FoxyProxy/uBlock extensions,
custom server-checked updater, NSIS installer.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/shared/constants.ts

@@ -0,0 +1,20 @@
+export const APP_VERSION = '1.0.1';
+
+export const DEFAULT_CONFIG_SERVER_URL = 'https://your-server.com/api';
+
+export const DEFAULT_PROXY_PORT = 10808;
+
+export const DEFAULT_SETTINGS = {
+  configServerUrl: DEFAULT_CONFIG_SERVER_URL,
+  proxyAutoStart: true,
+  theme: 'dark' as const,
+  language: 'ru' as const,
+};
+
+export const INVISIBLE_MAN_CLI_PATH = 'invisibleManXRay'; // Path to CLI executable
+
+export const DB_PATHS = {
+  BOOKMARKS: 'bookmarks.db',
+  SETTINGS: 'settings.db',
+  CONFIG: 'config.json',
+};