The lint lets an invite form ask for a phone number instead of an address

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

CHANGELOG.md

@@ -4,6 +4,10 @@ One line per change, grouped by the release that shipped it. Newest
 first. A release is a Cargo.toml bump plus a `v<version>` tag; the
 content repos pin the tag they run (see the end of this file).
 
+## 0.5.10 (2026-09-30)
+
+- The lint lets an invite form collect a required `phone` in place of a required `email`: memberships know a person by number first.
+
 ## 0.5.9 (2026-09-30)
 
 - With memberships as the people backend and a Kanidm token still set, an invite makes the Kanidm account as well (no group, the one-time link in the mail): Kanidm makes people, portal makes members, and a site can switch to memberships before its sign-in provider is one everyone already has.

src/content/validate.rs

@@ -278,9 +278,12 @@ pub fn validate_questions(
                         .flat_map(|f| &f.requirements)
                         .any(|r| r.name == name && !r.optional)
                 };
-                if !has("name") || !has("email") {
+                // A person is known by a phone number or an address;
+                // either will do, since memberships key on the number
+                // first and Kanidm on the address.
+                if !has("name") || !(has("email") || has("phone")) {
                     anyhow::bail!(
-                        "question {:?} alternative {:?}: an invite must collect required `name` and `email` fields",
+                        "question {:?} alternative {:?}: an invite must collect a required `name` and a required `email` or `phone` field",
                         question.id, alternative.name
                     );
                 }