fix: restore safe top actions and home group chat entry

src/app/api/v1/group-chats/route.ts

@@ -0,0 +1,29 @@
+import { NextRequest, NextResponse } from "next/server";
+import { requireRequestSession } from "@/lib/boss-auth";
+import { createIndependentGroupChat } from "@/lib/boss-data";
+
+export async function POST(request: NextRequest) {
+  const session = await requireRequestSession(request);
+  if (!session) {
+    return NextResponse.json({ ok: false, message: "UNAUTHORIZED" }, { status: 401 });
+  }
+
+  const body = (await request.json()) as {
+    memberProjectIds?: string[];
+  };
+
+  try {
+    const project = await createIndependentGroupChat({
+      memberProjectIds: Array.isArray(body.memberProjectIds)
+        ? body.memberProjectIds.filter((memberProjectId) => typeof memberProjectId === "string")
+        : [],
+      createdBy: session.account,
+    });
+    return NextResponse.json({ ok: true, project });
+  } catch (error) {
+    return NextResponse.json(
+      { ok: false, message: error instanceof Error ? error.message : "UNKNOWN_ERROR" },
+      { status: 400 },
+    );
+  }
+}