Feishu: honor group/dm prefixes in target parsing

extensions/feishu/src/targets.test.ts

@@ -13,6 +13,10 @@ describe("resolveReceiveIdType", () => {
   it("defaults unprefixed IDs to user_id", () => {
     expect(resolveReceiveIdType("u_123")).toBe("user_id");
   });
+
+  it("treats explicit group targets as chat_id", () => {
+    expect(resolveReceiveIdType("group:oc_123")).toBe("chat_id");
+  });
 });
 
 describe("normalizeFeishuTarget", () => {
@@ -25,9 +29,17 @@ describe("normalizeFeishuTarget", () => {
     expect(normalizeFeishuTarget("feishu:chat:oc_123")).toBe("oc_123");
   });
 
+  it("strips provider and group prefixes", () => {
+    expect(normalizeFeishuTarget("feishu:group:oc_123")).toBe("oc_123");
+  });
+
   it("accepts provider-prefixed raw ids", () => {
     expect(normalizeFeishuTarget("feishu:ou_123")).toBe("ou_123");
   });
+
+  it("strips provider and dm prefixes", () => {
+    expect(normalizeFeishuTarget("lark:dm:ou_123")).toBe("ou_123");
+  });
 });
 
 describe("looksLikeFeishuId", () => {
@@ -38,4 +50,8 @@ describe("looksLikeFeishuId", () => {
   it("accepts provider-prefixed chat targets", () => {
     expect(looksLikeFeishuId("lark:chat:oc_123")).toBe(true);
   });
+
+  it("accepts provider-prefixed group targets", () => {
+    expect(looksLikeFeishuId("feishu:group:oc_123")).toBe(true);
+  });
 });

extensions/feishu/src/targets.ts

@@ -33,9 +33,15 @@ export function normalizeFeishuTarget(raw: string): string | null {
   if (lowered.startsWith("chat:")) {
     return withoutProvider.slice("chat:".length).trim() || null;
   }
+  if (lowered.startsWith("group:")) {
+    return withoutProvider.slice("group:".length).trim() || null;
+  }
   if (lowered.startsWith("user:")) {
     return withoutProvider.slice("user:".length).trim() || null;
   }
+  if (lowered.startsWith("dm:")) {
+    return withoutProvider.slice("dm:".length).trim() || null;
+  }
   if (lowered.startsWith("open_id:")) {
     return withoutProvider.slice("open_id:".length).trim() || null;
   }
@@ -56,6 +62,17 @@ export function formatFeishuTarget(id: string, type?: FeishuIdType): string {
 
 export function resolveReceiveIdType(id: string): "chat_id" | "open_id" | "user_id" {
   const trimmed = id.trim();
+  const lowered = trimmed.toLowerCase();
+  if (lowered.startsWith("chat:") || lowered.startsWith("group:")) {
+    return "chat_id";
+  }
+  if (lowered.startsWith("open_id:")) {
+    return "open_id";
+  }
+  if (lowered.startsWith("user:") || lowered.startsWith("dm:")) {
+    const normalized = trimmed.replace(/^(user|dm):/i, "").trim();
+    return normalized.startsWith(OPEN_ID_PREFIX) ? "open_id" : "user_id";
+  }
   if (trimmed.startsWith(CHAT_ID_PREFIX)) {
     return "chat_id";
   }
@@ -70,7 +87,7 @@ export function looksLikeFeishuId(raw: string): boolean {
   if (!trimmed) {
     return false;
   }
-  if (/^(chat|user|open_id):/i.test(trimmed)) {
+  if (/^(chat|group|user|dm|open_id):/i.test(trimmed)) {
     return true;
   }
   if (trimmed.startsWith(CHAT_ID_PREFIX)) {