feat(FN-1116): add Capacitor plugin managers for dashboard

- Add shared plugin types and manager modules for splash screen, status bar, and network handling
- Export plugin initialization from the dashboard entrypoint and configure Capacitor splash/status-bar defaults
- Add unit tests covering plugin initialization and each manager's behavior across supported scenarios
- Document the plugin manager architecture and add required Capacitor plugin dependencies

packages/dashboard/src/plugins/index.ts

@@ -0,0 +1,99 @@
+import { SplashScreenManager } from "./splash-screen.js";
+import { StatusBarManager } from "./status-bar.js";
+import { NetworkManager } from "./network.js";
+import type { PluginInitOptions, PluginInitResult } from "./types.js";
+
+// Types
+export type {
+  NetworkStatus,
+  ThemeMode,
+  StatusBarStyle,
+  PluginInitOptions,
+  NetworkStatusCallback,
+  ThemeChangeCallback,
+  PluginManager,
+  PluginInitResult,
+} from "./types.js";
+
+// Plugin managers
+export { SplashScreenManager } from "./splash-screen.js";
+export type { SplashScreenOptions } from "./splash-screen.js";
+
+export { StatusBarManager } from "./status-bar.js";
+export type { StatusBarOptions } from "./status-bar.js";
+
+export { NetworkManager } from "./network.js";
+
+/**
+ * Initialize all mobile plugin managers.
+ *
+ * Creates manager instances, initializes them in order (splash → status bar → network),
+ * and returns them along with the initialization results.
+ *
+ * Errors in individual managers are caught and reported in the result
+ * without preventing other managers from initializing.
+ */
+export async function initializePlugins(
+  options: PluginInitOptions = {},
+): Promise<{
+  splashScreen: SplashScreenManager;
+  statusBar: StatusBarManager;
+  network: NetworkManager;
+  result: PluginInitResult;
+}> {
+  const splashScreen = new SplashScreenManager({
+    autoHide: options.splashAutoHide,
+    hideDelay: options.splashHideDelay,
+  });
+
+  const statusBar = new StatusBarManager({
+    themeMode: options.themeMode,
+  });
+
+  const network = new NetworkManager();
+
+  const result: PluginInitResult = {
+    splashScreen: false,
+    statusBar: false,
+    network: false,
+    errors: [],
+  };
+
+  // Initialize splash screen first (so it hides after UI loads)
+  try {
+    await splashScreen.initialize();
+    result.splashScreen = true;
+  } catch (error) {
+    result.errors.push({
+      plugin: "splashScreen",
+      error: error instanceof Error ? error : new Error(String(error)),
+    });
+  }
+
+  // Initialize status bar
+  try {
+    await statusBar.initialize();
+    result.statusBar = true;
+  } catch (error) {
+    result.errors.push({
+      plugin: "statusBar",
+      error: error instanceof Error ? error : new Error(String(error)),
+    });
+  }
+
+  // Initialize network monitoring
+  try {
+    await network.initialize();
+    if (options.startNetworkMonitoring === false) {
+      await network.stopMonitoring();
+    }
+    result.network = true;
+  } catch (error) {
+    result.errors.push({
+      plugin: "network",
+      error: error instanceof Error ? error : new Error(String(error)),
+    });
+  }
+
+  return { splashScreen, statusBar, network, result };
+}