[BUG] Interactive verbs (--encrypt-password, --configure-network) give no feedback on a non-interactive console (ISE / remote / redirected stdin) #2097

Component

Darling

Performance Monitor Version

v3.3.0 and dev

SQL Server Version

n/a

Windows Version

Windows PowerShell ISE; also some VS Code integrated terminals, remote/PSRemoting sessions, or any EOF/redirected stdin.

Describe the Bug

The stdin-reading verbs read EOF immediately in a non-interactive console and effectively do nothing, with no visible guidance - the operator (me) thinks the tool hung or the verb is broken.

Steps to Reproduce

1. Open PowerShell ISE (or any non-console host).
2. Run PerformanceMonitor.Darling.Service.exe --encrypt-password.
3. Type a password + Enter → nothing usable comes back. The Password: prompt and the No password read from stdin. line are written to stderr, which these hosts don't surface - so it reads as a silent no-op.
4. Same for --configure-network: the wizard's prompts read EOF and it bails.

Expected Behavior

To work.

Actual Behavior

Console.ReadLine() returns null when stdin isn't an interactive console; the only feedback is on stderr, which ISE and some hosts don't display, so it looks like nothing happened.

The very first setup step (encrypting the SQL-auth password) fails silently with no path forward. The workaround exists but isn't discoverable: Read-Host 'x' | PerformanceMonitor.Darling.Service.exe --encrypt-password.

Error Messages / Log Output

Screenshots

No response

Additional Context

Suggested fix: On a null/empty stdin read, emit an actionable message to stdout (a stream every host shows), naming the likely cause and the pipe workaround — e.g.:

No interactive input received. If you're in the PowerShell ISE or a non-interactive/remote shell, pipe the value instead:
Read-Host 'password' | PerformanceMonitor.Darling.Service.exe --encrypt-password

Optionally detect it up front (e.g. Console.IsInputRedirected == false + a null read). Apply to every stdin-reading verb (--encrypt-password, --configure-network, and any others).

Acceptance: Running these verbs in ISE / a non-interactive shell prints a clear, actionable message (to a displayed stream) with the exact pipe command - instead of doing nothing.