_authelia_add_oidc_client()'s "what domain is this app on" prompt only
ever took typed text (with a guessed SITE_DOMAIN-based default) even
though _authelia_protect_site already offered a numbered pick-from-
Caddy-or-type-a-domain UX for the equivalent question elsewhere in
this same file -- an inconsistency a user flagged directly after
registering Mealie's OIDC client and getting a plain text prompt where
they expected the same numbered list.
Factored the shared part into _authelia_pick_domain(): lists this
box's local Caddy sites by number, or accepts a typed domain
(including one not on this box's Caddy at all). Echoes the chosen
domain on stdout with the listing itself on stderr, verified separable
under $(...) capture before wiring it in. Used now by the OIDC domain
prompt; _authelia_protect_site/_authelia_unprotect_site keep their own
inline listing since they additionally annotate each site's current
protection status, which this shared version doesn't need to know
about.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SpKTLpwAgZNooTacWeQLuc
Claude
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