fix: manager tenant root → NC Drive, /admin → vmis-backend (correct route)

Reverts incorrect redirect: root path now serves NC Drive directly.
Manager tenant routes: /admin (priority 200) → vmis-backend, /api (priority 200) → vmis-backend, / → NC container.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/services/scheduler/schedule_tenant.py

@@ -200,19 +200,13 @@ def _generate_tenant_route_yaml(tenant, is_active: bool) -> str:
     lines = ["http:"]
 
     if tenant.is_manager:
-        # Manager 租戶：根路徑 redirect 到 /admin，/admin 和 /api 指向 vmis-backend
+        # Manager 租戶：/admin → vmis-backend，/api → vmis-backend，根路徑 → NC Drive
         lines += [
             "  middlewares:",
             "    vmis-strip-admin:",
             "      stripPrefix:",
             '        prefixes: ["/admin"]',
             "",
-            "    vmis-redirect-admin:",
-            "      redirectRegex:",
-            f'        regex: "^https://{domain}/?$"',
-            f'        replacement: "https://{domain}/admin/"',
-            "        permanent: false",
-            "",
         ]
         lines += [
             "  routers:",
@@ -233,22 +227,24 @@ def _generate_tenant_route_yaml(tenant, is_active: bool) -> str:
             "        certResolver: letsencrypt",
             "      priority: 200",
             "",
-            f"    {code}-root:",
+            f"    {code}-drive:",
             f'      rule: "Host(`{domain}`)"',
-            f"      service: {code}-vmis",
+            f"      service: {code}-drive",
             "      entryPoints: [websecure]",
-            "      middlewares: [vmis-redirect-admin]",
             "      tls:",
             "        certResolver: letsencrypt",
-            "      priority: 100",
             "",
             f"    {code}-http:",
             f'      rule: "Host(`{domain}`)"',
             "      entryPoints: [web]",
             "      middlewares: [redirect-https]",
-            f"      service: {code}-vmis",
+            f"      service: {code}-drive",
             "",
             "  services:",
+            f"    {code}-drive:",
+            "      loadBalancer:",
+            "        servers:",
+            f'          - url: "{nc_url}"',
             f"    {code}-vmis:",
             "      loadBalancer:",
             "        servers:",