Feat/onboarding wizard (#2086)

* feat(web): add onboarding wizard for guided bot creation

Implement a full-screen 4-step wizard at /wizard that guides users
through selecting a platform, configuring a bot, choosing an AI engine,
and completing setup. The wizard uses DynamicFormComponent for adapter
and pipeline configuration, embeds BotLogListComponent for real-time
debugging, persists state to localStorage, and integrates with Space
OAuth flow. Also fixes a prompt-editor crash in DynamicFormComponent
when value is undefined.

* feat(wizard): redesign step 0/1 flow, add skip dialog, auto-expand log images

- Step 0: Remove bot name/description fields; auto-derive name from adapter
  label; create disabled bot on confirm; advance to Step 1 automatically
- Step 1: Replace 'Create Bot' with 'Save & Enable Bot'; update adapter
  config and enable bot; disable form fields after saving
- Add skip confirmation AlertDialog with i18n message
- Add LanguageSelector to wizard header
- Move wizard sidebar entry to last position to prevent fallback redirect loop
- Add defaultExpanded prop to BotLogCard; auto-expand entries with images
  in wizard via autoExpandImages prop on BotLogListComponent
- Remove automatic default pipeline creation (write_default_pipeline) from
  backend persistence manager since the wizard now handles pipeline creation
- Update all 4 locale files (en-US, zh-Hans, zh-Hant, ja-JP)

* fix(wizard): hide detailed logs link in wizard, allow re-editing bot config after save

- Add hideDetailedLogsLink prop to BotLogListComponent; pass it in wizard
- Remove isEditing on DynamicFormComponent so form stays editable after save
- Always show save button; label changes to 'Re-save' after first save
- Add resaveBot i18n key to all 4 locale files

* style(wizard): move save button into config card header

* fix(wizard): initialize userInfo/systemInfo so model selector works

The wizard runs outside /home layout, so userInfo was null. This caused
the model-fallback-selector to filter out all Space models, showing an
empty dropdown. Fix by calling initializeUserInfo() and
initializeSystemInfo() before fetching wizard data.

Also:
- Hide log toolbar in wizard via hideToolbar prop on BotLogListComponent
- Add empty state message for bot logs (noLogs i18n key, all 4 locales)

* feat(wizard): redesign AI Engine step with left-right split layout

Before selecting a runner: centered grid of runner cards.
After selecting: left panel shows compact runner list for switching,
right panel shows runner config form with slide-in animations.

Also fix prompt field default: add default value to prompt-editor field
in ai.yaml metadata so the prompt is pre-populated with
'You are a helpful assistant.' instead of being empty.

* feat(pipeline): add default values to ai.yaml runner configs and show_if for n8n auth fields

- Sync default values from default-pipeline-config.json to all runner
  config fields in ai.yaml so wizard forms are pre-populated
- Add show_if conditions to n8n-service-api auth fields so only the
  relevant credentials appear based on selected auth-type
- Fix prompt-editor crash in DynamicFormItemComponent when field.value
  is undefined (Array.isArray guard + fallback)
- Improve wizard Step 2 split layout with fixed column widths,
  independent scroll, ring clipping fix, and mobile responsiveness
- Use key={selected} on DynamicFormComponent to force remount on
  runner switch
- Improve pipeline creation flow: create → fetch defaults → merge AI
  section → update (preserves trigger/safety/output defaults)

* feat(dynamic-form): add systemContext prop with __system.* namespace for show_if conditions

- Add systemContext prop to DynamicFormComponent for injecting external
  variables accessible via __system.* prefix in show_if conditions
- Extract resolveShowIfValue() helper for cleaner field resolution
- Pass { is_wizard: true } from wizard to hide knowledge-bases field
- Remove bot config save toast in wizard (keep inline indicator)

* feat(sidebar): render wizard as standalone item before Home group with fallback redirect fix

* fix(wizard): remove unused setBotDescription to fix lint error

web/src/i18n/locales/zh-Hant.ts

@@ -5,6 +5,7 @@ const zhHant = {
     installedPlugins: '已安裝外掛',
     pluginMarket: '外掛市場',
     mcpServers: 'MCP 伺服器',
+    quickStart: '快速開始',
   },
   common: {
     login: '登入',
@@ -301,6 +302,7 @@ const zhHant = {
     allLevels: '全部級別',
     selectLevel: '選擇級別',
     levelsSelected: '個級別已選',
+    noLogs: '暫無日誌',
     sessionMonitor: {
       title: '會話監控',
       sessions: '會話列表',
@@ -1023,6 +1025,64 @@ const zhHant = {
     maxExtensionsReached:
       '已達到擴充功能數量上限（{{max}}個）。請先刪除已有的 MCP 伺服器或外掛後再新增。',
   },
+  wizard: {
+    sidebarDescription: '透過引導步驟建立機器人',
+    loading: '正在載入嚮導...',
+    loadError: '載入嚮導資料失敗',
+    skip: '跳過',
+    skipConfirmMessage:
+      '您之後可以在側邊欄重新進入快速開始嚮導，或手動建立機器人。',
+    skipConfirmOk: '確定',
+    prev: '上一步',
+    next: '下一步',
+    finish: '建立並部署',
+    confirmCreateBot: '確定，建立機器人',
+    createSuccess: '流水線已建立並關聯到機器人！',
+    botCreateSuccess: '機器人建立成功！',
+    botSaveSuccess: '機器人配置已儲存並啟用！',
+    createError: '建立資源失敗',
+    spaceAuthError: '無法發起 Space 授權',
+    step: {
+      platform: '平台接入',
+      botConfig: '機器人配置',
+      aiEngine: 'AI 引擎',
+      done: '完成',
+    },
+    platform: {
+      title: '選擇平台',
+      description: '選擇機器人要接入的訊息平台。',
+    },
+    botConfig: {
+      title: '配置機器人',
+      description: '配置好機器人並確認其正常運作後再繼續。',
+      saveBot: '儲存並啟用',
+      resaveBot: '重新儲存配置',
+      botSaved: '機器人配置已儲存並啟用，請查看日誌確認連接正常。',
+      logsTitle: '機器人日誌',
+      logsDescription: '監控機器人活動，確認平台連接是否正常運作。',
+    },
+    aiEngine: {
+      title: '選擇 AI 引擎',
+      description: '選擇驅動機器人智慧的 AI 引擎。',
+    },
+    spaceBanner: {
+      message: '接入 LangBot Space，取得免費試用模型額度，零配置極速開箱！',
+      action: '前往授權登入',
+    },
+    config: {
+      botInfo: '機器人資訊',
+      botNamePlaceholder: '請輸入機器人名稱',
+      botDescPlaceholder: '請輸入機器人描述（可選）',
+      platformConfig: '{{platform}} 配置',
+      aiConfig: '{{engine}} 配置',
+    },
+    done: {
+      title: '一切就緒！',
+      description:
+        '機器人已建立並連接到 AI 流水線。你現在可以在工作台中管理它。',
+      backToWorkbench: '返回工作台',
+    },
+  },
 };
 
 export default zhHant;