fix: URL-encode share link params for v2rayNG SNI parsing

Co-authored-by: Cursor <cursoragent@cursor.com>

panel/links.py

@@ -21,6 +21,13 @@ def load_env() -> dict[str, str]:
     return env
 
 
+def _qs(value: str) -> str:
+    """URL-encode query / userinfo values for share links."""
+    # quote() leaves unreserved chars like '.' unencoded; some clients (v2rayNG)
+    # misparsed sni=www.microsoft.com — force dots encoded for compatibility.
+    return quote(value, safe="").replace(".", "%2E")
+
+
 def build_links(node: dict, env: dict | None = None) -> dict[str, str]:
     env = env or load_env()
     vps_ip = env["VPS_IP"]
@@ -34,8 +41,11 @@ def build_links(node: dict, env: dict | None = None) -> dict[str, str]:
     vless = (
         f"vless://{node['uuid']}@{vps_ip}:443"
         f"?encryption=none&flow=xtls-rprx-vision&security=reality"
-        f"&sni={reality_sni}&fp=chrome&pbk={public_key}&sid={short_id}"
+        f"&sni={_qs(reality_sni)}&fp=chrome&pbk={_qs(public_key)}&sid={_qs(short_id)}"
         f"&spx=%2F&type=tcp#{name}"
     )
-    hy2 = f"hy2://{node['hy2_password']}@{domain}:{port}?sni={domain}#{name}-Hy2"
+    hy2 = (
+        f"hy2://{_qs(node['hy2_password'])}@{domain}:{port}"
+        f"?sni={_qs(domain)}#{name}-Hy2"
+    )
     return {"vless": vless, "hy2": hy2}