improve ergonomy

src/controllers/chat.js

@@ -8,8 +8,12 @@ const chatController = {
             if (!pubkey) {
                 return res.status(400).json({ error: "Missing publicKey" });
             }
-            await database.createRoom(req.session.publicKey, stringutils.pemToHex(pubkey));
-            return res.status(201).json({ message: "Room created successfully." });
+            const hexKey = stringutils.pemToHex(pubkey)
+            const roomid = await database.createRoom(req.session.publicKey, hexKey);
+            return res.status(201).json({ message: "Room created successfully.",
+                                          roomid: roomid,
+                                          peer: hexKey
+                                        });
         } catch (error) {
             console.error("Error creating the room:", error);
             return res.status(500).json({ error: "Failed to create the room" });