* fix(desktop): pin every command line the app may start
On Windows the app starts npm-installed CLIs through cmd /c, and the shell scope let cmd take any arguments, so any code running in the webview could run any command. Each program now has a scope entry with its exact arguments, and Windows shims go through their own cmd-<name> entries with fixed /c <name> arguments. The agents and the MCP server no longer accept arbitrary arguments either. A test checks that every command the app starts has a matching entry on both platforms.
* test(desktop): expect Windows shims through their own scope entries
* test(desktop): check the executable of each shell scope entry
* test(desktop): allow no shell scope entry beyond the programs the app starts
An extra entry with a permissive validator passed the per-program checks.