fix: Correctly join verify_peer_cert_by_name as a comma-separated string in transport configurations

Author: ImMohammad20000

app/subscription/links.py

@@ -174,7 +174,7 @@ def _apply_tls_settings(self, payload: dict, tls_config: TLSConfig, fragment_set
         payload["sni"] = sni
         payload["fp"] = tls_config.fingerprint
         payload["pcs"] = tls_config.pinned_peer_cert_sha256
-        payload["vcn"] = tls_config.verify_peer_cert_by_name.join(",") if tls_config.verify_peer_cert_by_name else ""
+        payload["vcn"] = ",".join(tls_config.verify_peer_cert_by_name) if tls_config.verify_peer_cert_by_name else ""
 
         # Use pre-formatted alpn for links (comma-separated string)
         if tls_config.alpn_links:

app/subscription/xray.py

@@ -310,7 +310,7 @@ def _apply_tls(self, tls_config: TLSConfig, security: str) -> dict:
                 "fingerprint": tls_config.fingerprint,
                 "echConfigList": tls_config.ech_config_list,
                 "pinnedPeerCertSha256": tls_config.pinned_peer_cert_sha256,
-                "verifyPeerCertByName": tls_config.verify_peer_cert_by_name.join(",")
+                "verifyPeerCertByName": ",".join(tls_config.verify_peer_cert_by_name)
                 if tls_config.verify_peer_cert_by_name
                 else "",
             }