cultnet-rs: kind-array refusal no longer quotes the value; README says delete carries ids

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/cultnet-rs/README.md

@@ -11,8 +11,9 @@ The contract is intentionally boring:
 - `gamecult.networking.v0` maps the legacy C# union shape explicitly.
 - schema discovery uses explicit catalog request/response messages; no inbound
   auto-detect sludge.
-- put/delete/snapshot travel only as raw messages that carry the canonical
-  MessagePack payload bytes; the receiver decodes them through registered types.
+- put and snapshot travel only as raw messages that carry the canonical
+  MessagePack payload bytes; the receiver decodes them through registered
+  types. Delete carries ids.
 - hello messages advertise `supportedMutationContracts`, so callers discover
   which document types are read-only, which accept typed intents, which
   authority owns the mutation, and which receipt documents prove the outcome.

packages/cultnet-rs/src/contracts.rs

@@ -1658,7 +1658,7 @@ fn require_legacy_optional_schema_kind_array(
             "wire_message" => Ok(CultNetSchemaKind::WireMessage),
             "document_payload" => Ok(CultNetSchemaKind::DocumentPayload),
             "shared_contract" => Ok(CultNetSchemaKind::SharedContract),
-            _ => Err(anyhow!("{field_name} has unsupported schema kind {value}")),
+            _ => Err(anyhow!("{field_name} has an unsupported schema kind")),
         })
         .collect::<Result<Vec<_>>>()
         .map(Some)

packages/cultnet-rs/tests/decode_door.rs

@@ -675,6 +675,26 @@ fn a_networking_schema_descriptor_with_a_repeated_key_is_refused_and_a_bad_kind_
     assert!(text.contains("Kind") && !text.contains("CANARY"), "{text}");
 }
 
+#[test]
+fn a_networking_catalog_request_with_a_bad_kind_element_is_refused_without_quoting_it() {
+    let union = rmpv::Value::Array(vec![
+        7.into(),
+        rmpv::Value::Array(vec![
+            "m".into(),
+            false.into(),
+            rmpv::Value::Nil,
+            rmpv::Value::Array(vec!["CANARY-s2x".into()]),
+        ]),
+    ]);
+    let bytes = rmp_serde::to_vec(&union).unwrap();
+    let text = on_stack(BIG, move || {
+        decode_cultnet_message_from_slice(&bytes, CultNetWireContract::GameCultNetworkingV0)
+            .map_err(|error| format!("{error:#}"))
+    })
+    .unwrap_err();
+    assert!(text.contains("Kinds") && !text.contains("CANARY"), "{text}");
+}
+
 #[test]
 fn a_schema_version_that_is_not_shaped_like_a_schema_name_is_described_by_length() {
     let long = format!("cultnet.{}.v0", "a".repeat(100));