fix(feishu): conform card form submission and model select to upstream

- read form data from action.form_value (Card 2.0) instead of formValue

- wrap custom steer input and submit in a form container with submit button

- reuse runModelCommand for dropdown model picks so IDs with multiple / keep working

- pass key when sending the help card so back-to-menu stays valid

- compute initial_index from {value} option arrays

- add in-flight tests for menu stop, steer dropdown, and steer form

src/channels/feishu/bridge.mjs

@@ -1147,7 +1147,7 @@ export class FeishuHarnessBridge {
         });
       }
       if (source === 'form') {
-        const text = nonEmptyString(event?.action?.formValue?.steer_text);
+        const text = nonEmptyString(event?.action?.form_value?.steer_text);
         if (text) {
           return this.#sendSteer(entry, text).catch((error) => {
             this.#logger.warn?.('[dsh-feishu] steer (form) failed:', error.message);
@@ -1271,7 +1271,7 @@ export class FeishuHarnessBridge {
       return;
     }
     if (action === 'help') {
-      await this.#showHelpCard(chatId);
+      await this.#showHelpCard(key, chatId);
       return;
     }
     if (action === 'back_to_menu') {
@@ -1739,8 +1739,8 @@ export class FeishuHarnessBridge {
   /**
    * Show the help card with all command descriptions.
    */
-  async #showHelpCard(chatId) {
-    await this.#sendCard(chatId, helpCard(WORKSPACE_HELP_LINES), {});
+  async #showHelpCard(key, chatId) {
+    await this.#sendCard(chatId, helpCard(WORKSPACE_HELP_LINES), { key });
   }
 
   /**
@@ -1839,45 +1839,23 @@ export class FeishuHarnessBridge {
 
   /**
    * Handle model selection from the model dropdown.
+   *
+   * Reuses `runModelCommand` (the same path as the `/model <id>` text
+   * command) so model IDs containing `/` (e.g.
+   * `openrouter/anthropic/claude-sonnet-4`) keep working, and all the
+   * catalog validation, busy checks, pending-interaction checks and the
+   * session binding lock stay in one place.
    */
   async #handleModelSelect(key, chatId, modelId) {
     try {
-      const parts = modelId.split('/');
-      if (parts.length !== 2) {
-        await this.#send(chatId, `模型 ID 格式无效：${modelId}`);
-        return;
-      }
-      const [provider, model] = parts;
-      const sessionId = this.#state?.sessionFor?.(key);
-
-      if (typeof sessionId === 'string' && sessionId) {
-        // Select model on the bound session
-        const session = this.#harness.workspaceSession(sessionId);
-        if (!session?.selectModel) {
-          await this.#send(chatId, '当前会话不支持切换模型。');
-          return;
-        }
-        await session.selectModel({ provider, model }, { signal: this.#signal });
-      } else {
-        // No session yet; select default model for future sessions
-        if (typeof this.#harness?.createSession !== 'function') {
-          throw new TypeError('Harness cannot create a session');
-        }
-        const newSessionId = await this.#harness.createSession({ signal: this.#signal });
-        if (typeof newSessionId !== 'string' || !newSessionId) {
-          await this.#send(chatId, '无法创建新会话来选择模型。');
-          return;
-        }
-        const session = this.#harness.workspaceSession(newSessionId);
-        if (!session?.selectModel) {
-          await this.#send(chatId, '新会话不支持切换模型。');
-          return;
-        }
-        await session.selectModel({ provider, model }, { signal: this.#signal });
-        await this.#state.setSession(key, newSessionId);
-      }
-
-      await this.#send(chatId, `模型已切换为：${modelId}`);
+      const result = await runModelCommand(
+        `/model ${modelId}`, this.#harness, this.#state, key, {
+          signal: this.#signal,
+          control: { owner: this, key },
+        },
+      );
+      const message = result?.message || '模型切换失败，请稍后重试。';
+      await this.#send(chatId, message);
       await this.#showSettingsCard(key, chatId);
     } catch (error) {
       this.#logger.warn?.('[dsh-feishu] model select failed:', error.message);

src/channels/feishu/feishu-cards.mjs

@@ -150,15 +150,16 @@ export function menuCard(ctx) {
   // 会话下拉：列出最近会话，选择即切换（当前绑定会话带 ✓）
   const sessionOptions = (Array.isArray(sessions) ? sessions : []).slice(0, 20);
   if (sessionOptions.length > 0) {
+    const sessionPickOptions = sessionOptions.map((s) => ({
+      text: { tag: 'plain_text', content: `${s.id === currentSessionId ? '✓ ' : ''}${safeTitle(s.title)}` },
+      value: s.id,
+    }));
     elements.push({
       tag: 'select_static',
       name: 'session_pick',
       placeholder: { tag: 'plain_text', content: '切换/续写会话' },
-      initial_index: initialIndex(sessionOptions, currentSessionId),
-      options: sessionOptions.map((s) => ({
-        text: { tag: 'plain_text', content: `${s.id === currentSessionId ? '✓ ' : ''}${safeTitle(s.title)}` },
-        value: s.id,
-      })),
+      initial_index: initialIndex(sessionPickOptions, currentSessionId),
+      options: sessionPickOptions,
       behaviors: [{ type: 'callback', value: { action: 'session_pick' } }],
     });
     elements.push(buttonPair('🆕 新会话', 'new', '📋 全部会话', 'sessions'));
@@ -427,8 +428,8 @@ export function modelCard(catalog) {
     for (const group of groups) {
       for (const model of group.models) {
         allOptions.push({
-          id: `${group.id}/${model.id}`,
-          name: `${group.name} - ${model.name}`,
+          value: `${group.id}/${model.id}`,
+          text: { tag: 'plain_text', content: `${group.name} - ${model.name}` },
         });
       }
     }
@@ -441,8 +442,8 @@ export function modelCard(catalog) {
         placeholder: { tag: 'plain_text', content: '选择模型' },
         initial_index: currentId === null ? 0 : initialIndex(allOptions, currentId),
         options: allOptions.map((opt) => ({
-          text: { tag: 'plain_text', content: `${opt.name}${opt.id === currentId ? ' ✓' : ''}` },
-          value: opt.id,
+          text: { tag: 'plain_text', content: `${opt.text.content}${opt.value === currentId ? ' ✓' : ''}` },
+          value: opt.value,
         })),
         behaviors: [{ type: 'callback', value: { action: 'model_pick' } }],
       },
@@ -782,16 +783,23 @@ export function customSteerCard() {
     { tag: 'div', text: markdown('输入补充指令后点「提交」，发送给当前运行的任务。') },
     { tag: 'hr' },
     {
-      tag: 'input',
-      name: 'steer_text',
-      placeholder: { tag: 'plain_text', content: '输入你的补充指令' },
-    },
-    {
-      tag: 'button',
-      text: { tag: 'plain_text', content: '提交' },
-      type: 'primary',
-      width: 'fill',
-      behaviors: [{ type: 'callback', value: { action: 'steer', source: 'form' } }],
+      tag: 'form',
+      name: 'steer_form',
+      elements: [
+        {
+          tag: 'input',
+          name: 'steer_text',
+          placeholder: { tag: 'plain_text', content: '输入你的补充指令' },
+        },
+        {
+          tag: 'button',
+          text: { tag: 'plain_text', content: '提交' },
+          type: 'primary',
+          width: 'fill',
+          form_action_type: 'submit',
+          behaviors: [{ type: 'callback', value: { action: 'steer', source: 'form' } }],
+        },
+      ],
     },
     { tag: 'hr' },
     button('🔙 返回菜单', 'back_to_menu'),