Show WireGuard QR, full .conf and ZIP download after 3x-ui client create

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

app/services/xui_panels.py

@@ -287,6 +287,39 @@ async def list_all_site_clients(session: AsyncSession) -> list[XuiSiteClient]:
     return list(result.scalars().all())
 
 
+async def get_site_client(session: AsyncSession, site_client_id: int) -> XuiSiteClient | None:
+    from sqlalchemy.orm import selectinload
+
+    result = await session.execute(
+        select(XuiSiteClient)
+        .options(selectinload(XuiSiteClient.panel))
+        .where(XuiSiteClient.id == site_client_id)
+    )
+    return result.scalar_one_or_none()
+
+
+async def site_client_download_payload(row: XuiSiteClient) -> tuple[str, str]:
+    """Return (filename_stem, text content) for conf/link download."""
+    safe = "".join(ch if ch.isalnum() or ch in "-_" else "_" for ch in (row.email or "client"))
+    if row.protocol == "wireguard":
+        text = row.config_text or ""
+        if not text and row.private_key and row.address and row.server_public_key and row.endpoint:
+            from app.services.crypto import render_xui_wireguard_config
+
+            text = render_xui_wireguard_config(
+                private_key=row.private_key,
+                address=row.address,
+                dns=row.dns or "1.1.1.1, 1.0.0.1",
+                mtu=row.mtu or 1420,
+                server_public_key=row.server_public_key,
+                endpoint=row.endpoint,
+                remark=row.inbound_remark or row.email,
+            )
+        return safe, text
+    text = row.link or row.config_text or ""
+    return safe, text
+
+
 async def add_xui_client(
     session: AsyncSession,
     panel: XuiPanel,
@@ -359,6 +392,14 @@ async def add_xui_client(
     row.private_key = result.get("privateKey")
     row.public_key = result.get("publicKey")
     row.link = links[0] if links else None
+    row.address = result.get("address")
+    row.endpoint = result.get("endpoint")
+    row.dns = result.get("dns")
+    row.mtu = result.get("mtu")
+    row.server_public_key = result.get("server_public_key")
+    row.config_text = result.get("config_text")
+    if not row.config_text and row.link:
+        row.config_text = row.link
     row.expiry_days = expiry_days
     row.start_after_first_use = start_after_first_use
     row.expiry_time = int(result.get("expiryTime") or expiry_time or 0)