init help shows hidden compatibility flags

[upadhyay192]

Describe the bug
supabase init --help in the legacy TS CLI shows compatibility flags that are hidden in the Go CLI:

• --with-vscode-workspace
• --with-vscode-settings
• --with-intellij-settings

The flags still work for backwards compatibility, but they should not appear in help output.

To Reproduce
Run:

supabase init --help

Observe that the help output includes:

--with-vscode-workspace
--with-vscode-settings
--with-intellij-settings

Expected behavior
Those flags should remain accepted for compatibility, but they should be hidden from --help, matching the Go CLI behavior.

Additional context
The Go command marks these flags hidden in apps/cli-go/cmd/init.go, but the legacy TS shim currently exposes them as normal visible flags.