feat(platform): show deployment outbound IPs on adapter config forms

Cloud/NAT deployments couldn't complete WeCom-family / Official Account /
QQ Official setup because the trusted-IP (IP whitelist) value — the
server's egress IPs — was nowhere visible in LangBot.

- config.yaml: new system.outbound_ips list (env: SYSTEM__OUTBOUND_IPS,
  comma-separated), exposed via GET /api/v1/system/info
- dynamic form: generic __system.*-named display-only fields resolved
  from systemContext (same namespace as show_if), one read-only row per
  value with a copy button, excluded from form state and emitted values;
  hidden entirely when the deployment provides no IPs
- manifests: trusted-IP display field for wecom, wecomcs, wecombot,
  officialaccount, qqofficial

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/src/app/infra/entities/api/index.ts

@@ -348,6 +348,10 @@ export interface ApiRespSystemInfo {
   allow_modify_login_info: boolean;
   disable_models_service: boolean;
   limitation: SystemLimitation;
+  /** Public outbound IPs of the deployment (``system.outbound_ips`` in
+   *  config.yaml). Shown on adapter config forms whose platform requires
+   *  trusted-IP / IP-whitelist settings. Empty = not configured. */
+  outbound_ips: string[];
   wizard_status: string; // 'none' | 'skipped' | 'completed'
   wizard_progress: WizardProgress | null;
 }

web/src/app/infra/entities/form/dynamic.ts

@@ -1,5 +1,10 @@
 import { I18nObject } from '@/app/infra/entities/common';
 
+/** Namespace prefix shared by ``show_if.field`` references and display-only
+ *  form item names whose value is resolved from the caller-supplied
+ *  ``DynamicFormComponent.systemContext``. */
+export const SYSTEM_FIELD_PREFIX = '__system.';
+
 export interface IShowIfCondition {
   field: string;
   operator: 'eq' | 'neq' | 'in';
@@ -11,6 +16,12 @@ export interface IDynamicFormItemSchema {
   id: string;
   default: string | number | boolean | Array<unknown>;
   label: I18nObject;
+  /** Form value key. Names prefixed with ``__system.`` denote display-only
+   *  fields whose value is resolved from
+   *  ``DynamicFormComponent.systemContext`` (e.g. ``__system.outbound_ips``
+   *  → ``systemContext.outbound_ips``) — same namespace as ``show_if``.
+   *  Such fields are rendered read-only with copy buttons, excluded from
+   *  form state/validation/emission, and hidden when the value is empty. */
   name: string;
   required: boolean;
   type: DynamicFormItemType;

web/src/app/infra/http/index.ts

@@ -16,6 +16,7 @@ export const systemInfo: ApiRespSystemInfo = {
     max_pipelines: -1,
     max_extensions: -1,
   },
+  outbound_ips: [],
   wizard_status: 'none',
   wizard_progress: null,
 };