Introduces a new diagnostic command that walks a registry of check
modules against a store user's Webex Calling configuration and
surfaces per-issue adaptive-card remediation for the fixable ones.
Checks (services/voiceDiag/checks/): dnd, callForwarding, callWaiting,
callIntercept, voicemail, hoteling, executiveAssistant,
outgoingPermission, phoneOnline. Remediations offered for DND,
forwarding, waiting, and intercept.
Uses the /v1/people/{id}/features/* admin surface (spark-admin:people_read
+ spark-admin:people_write scopes we already hold) — the earlier
telephony/config/people/*/callSettings/* path scheme returns 404 from
the Webex gateway and is not a live surface. Runner distinguishes
routing-404s ("URL moved") from "not applicable" 404s ("no calling
license") via the response body.
Arg parser accepts detail/detailed/--detail/--detailed and normalises
macOS smart-dashes so --detailed doesn't die when auto-correct
turns it into an em-dash.
Wires a VOICEDIAG_ACTIONS dispatcher in index.js mirroring the IGMP
branch, and registers /voicediag in commands/registry.js. 170 tests
pass (52 new: 39 check + 12 renderer + 5 arg-normalization).
Docs updated in .env.example, services/phoneService.js:467, and a new
services/voiceDiag/README.md that includes a "how to add a check"
recipe plus a note on the earlier wrong URL scheme.
Co-authored-by: Cursor <cursoragent@cursor.com>
