Make recursive target mapping explicit for quote properties

Handle quote recursion properties explicitly in getRecursiveTargetId
instead of relying on an implicit non-reply fallback. This keeps the
mapping self-documenting and returns null for unexpected values.

Also adds a regression test that verifies unknown recurse properties
fall back to null.

#608 (comment)

Author: dahlia

packages/cli/src/lookup.test.ts

@@ -601,6 +601,23 @@ for (
   });
 }
 
+test("getRecursiveTargetId - returns null for unknown recurse property", () => {
+  const quoteUrl = new URL("https://example.com/notes/quoted");
+  const note = new Note({
+    id: new URL("https://example.com/notes/1"),
+    quoteUrl,
+  });
+  assert.equal(
+    getRecursiveTargetId(
+      note,
+      "https://example.com/custom#prop" as Parameters<
+        typeof getRecursiveTargetId
+      >[1],
+    ),
+    null,
+  );
+});
+
 test("collectRecursiveObjects - follows chain up to depth limit", async () => {
   const note1 = new Note({
     id: new URL("https://example.com/notes/1"),

packages/cli/src/lookup.ts

@@ -503,8 +503,15 @@ export function getRecursiveTargetId(
   ) {
     return object.replyTargetId;
   }
-  const quoteUrl = (object as { quoteUrl?: unknown }).quoteUrl;
-  return quoteUrl instanceof URL ? quoteUrl : null;
+  if (
+    recurseProperty === "quoteUrl" || recurseProperty === QUOTE_URL_IRI ||
+    recurseProperty === MISSKEY_QUOTE_IRI ||
+    recurseProperty === FEDIBIRD_QUOTE_IRI
+  ) {
+    const quoteUrl = (object as { quoteUrl?: unknown }).quoteUrl;
+    return quoteUrl instanceof URL ? quoteUrl : null;
+  }
+  return null;
 }
 
 /**