Add truffile delete command to remove apps from device

[robsltd]

Why

While building and iterating on a Whoop Focus App, each truffile deploy created a new app instance on the device. There was no way to remove the old ones. After a few iterations, the device had 7 duplicate apps (3 Whoop + 3 Research + 1 test).

The TruffleOS Desktop app lists installed apps but doesn't currently offer a delete option, and there's no CLI command for it either. The only way to clean up was the gRPC Apps_DeleteApp endpoint, which the SDK already has protobuf stubs for but never exposed.

What

Adds an interactive truffile delete CLI command that lists all installed focus and ambient apps, lets you select which to remove (by number, comma-separated, or all), and deletes them via the Apps_DeleteApp gRPC endpoint.

Changes

• truffile/client.py — Add delete_app(app_uuid) method to TruffleClient using DeleteAppRequest/DeleteAppResponse from the existing protobuf stubs
• truffile/cli.py — Add cmd_delete with interactive numbered selection, register delete subcommand in argparse, and add to help text

Usage

$ truffile delete

✓ Connecting to truffle-7416

Installed Apps:

  1. Research (focus)
     Tools to help your Truffle research and gather info...
  2. Whoop (focus)
     Access health and fitness tools powered by Whoop. 
  3. Whoop (focus)
     Access health and fitness tools powered by Whoop. 

Select apps to delete (e.g. 1,3,5 or 'all'): 2,3

✓ Deleting Whoop
✓ Deleting Whoop

✓ Deleted 2 app(s)

[notabd7-deepshard]

lgtm