frontend: polish app launch and release experience

neode-ui/src/api/__tests__/rpc-client.test.ts

@@ -450,6 +450,12 @@ describe('RPCClient convenience methods', () => {
     expect(getLastMethod()).toBe('package.uninstall')
   })
 
+  it('uninstallPackage forwards preserve_data when requested', async () => {
+    mockSuccess(undefined)
+    await rpcClient.uninstallPackage('btc', { preserveData: true })
+    expect(getLastParams()).toEqual({ id: 'btc', preserve_data: true })
+  })
+
   it('startPackage calls package.start', async () => {
     mockSuccess(undefined)
     await rpcClient.startPackage('btc')

neode-ui/src/api/rpc-client.ts

@@ -201,7 +201,7 @@ class RPCClient {
     currentPassword: string
     newPassword: string
     alsoChangeSsh?: boolean
-  }): Promise<{ success: boolean }> {
+  }): Promise<{ success: boolean; ssh_updated?: boolean; ssh_error?: string | null }> {
     return this.call({
       method: 'auth.changePassword',
       params: {
@@ -536,14 +536,17 @@ class RPCClient {
     })
   }
 
-  async uninstallPackage(id: string): Promise<{ status: string; package_id: string }> {
+  async uninstallPackage(
+    id: string,
+    options: { preserveData?: boolean } = {},
+  ): Promise<{ status: string; package_id: string }> {
     // Backend is async — returns { status: 'removing' } immediately after
     // flipping state. Graceful stop (up to 600s for bitcoin) and data wipe
     // (up to minutes for large chainstate) run in a background task.
     // Progress shown via uninstall_stage field on the package entry.
     return this.call({
       method: 'package.uninstall',
-      params: { id },
+      params: { id, ...(options.preserveData !== undefined ? { preserve_data: options.preserveData } : {}) },
       timeout: 15000,
     })
   }