refactor(channels): make built-in channels self-contained (#4908)

* refactor(channels): own setup and instance contracts

* refactor(channels): isolate management contracts

* refactor(channels): normalize activation contracts

* fix(channels): enforce management contracts

* refactor(channels): finish setup ownership migration

* fix(channels): harden management contracts

* fix(channels): enforce lazy loading and runtime ownership

* fix(feishu): make multi-instance startup idempotent

* fix(webui): render channel setup contracts cleanly

* fix(feishu): stop websocket clients cleanly

* fix(channels): enforce persistence and activation gates

* fix(channels): preserve global feature action scope

* fix(channels): apply defaults for single plugins

* fix(channels): enforce management contract boundaries

* refactor(feishu): remove identity helper indirection

* fix(channels): preserve management setup contracts

* refactor(channels): generalize instance settings UI

* refactor(channels): package channel plugins with web UI metadata

* refactor(channels): make built-ins self-contained packages

* test(channels): colocate tests with channel packages

* fix(dingtalk): use official brand icon

* feat(channels): colocate webui translations

* docs(channels): clarify plugin ownership

* test(exec): remove output wait race

* refactor(channels): unify plugin descriptors

* fix(channels): enforce descriptor-owned contracts

* refactor(channels): finish package-owned plugin setup

* refactor(channels): use repository-owned packages only

* fix(channels): self-describe dependencies and runtime state

* fix(channels): warn about legacy entry points

webui/src/lib/api.ts

@@ -497,9 +497,9 @@ export async function runPairingAction(
 
 export async function startChannelConnect(
   token: string,
-  channel: "feishu" | "weixin",
+  channel: string,
   options: {
-    domain?: "feishu" | "lark";
+    domain?: string;
     instanceId?: string;
     mode?: "replace" | "create";
     force?: boolean;
@@ -520,7 +520,7 @@ export async function startChannelConnect(
 
 export async function pollChannelConnect(
   token: string,
-  channel: "feishu" | "weixin",
+  channel: string,
   sessionId: string,
   base: string = "",
 ): Promise<ChannelConnectPayload> {
@@ -534,7 +534,7 @@ export async function pollChannelConnect(
 
 export async function cancelChannelConnect(
   token: string,
-  channel: "feishu" | "weixin",
+  channel: string,
   sessionId: string,
   base: string = "",
 ): Promise<ChannelConnectPayload> {

webui/src/lib/types.ts

@@ -691,11 +691,18 @@ export interface CliAppsPayload {
 export interface NanobotFeatureInfo {
   name: string;
   display_name: string;
+  capabilities?: string[];
+  settings_visible?: boolean;
+  webui?: string;
   type: "channel" | "feature" | string;
   enabled: boolean;
+  running?: boolean;
+  runtime_status?: ChannelRuntimeStatus;
+  runtime_error?: string;
   configured?: boolean;
   config_values?: Record<string, string>;
   configured_fields?: string[];
+  setup?: ChannelSetupContract;
   instances?: NanobotChannelInstanceInfo[];
   installed: boolean;
   ready: boolean;
@@ -704,19 +711,36 @@ export interface NanobotFeatureInfo {
   requires_restart: boolean;
 }
 
+export interface ChannelSetupContractField {
+  key: string;
+  field: string;
+  kind: "string" | "secret" | "int" | "bool" | "list" | "enum" | string;
+  choices: string[];
+  required: boolean;
+  default_value?: string;
+}
+
+export interface ChannelSetupContract {
+  fields: ChannelSetupContractField[];
+  official_url?: string;
+}
+
 export interface NanobotChannelInstanceInfo {
   id: string;
   name: string;
   display_name?: string;
   avatar_url?: string;
-  domain?: "feishu" | "lark" | string;
   enabled: boolean;
+  running?: boolean;
+  runtime_status?: ChannelRuntimeStatus;
+  runtime_error?: string;
   configured: boolean;
-  app_id?: string;
-  group_policy?: string;
-  allow_from?: string[];
+  config_values: Record<string, string>;
+  configured_fields: string[];
 }
 
+export type ChannelRuntimeStatus = "running" | "starting" | "failed" | "stopped" | string;
+
 export interface NanobotFeaturesPayload {
   features: NanobotFeatureInfo[];
   enabled_count: number;