feat(wizard): rework agent onboarding flow (#2471)

* feat(wizard): rework agent onboarding flow

* fix(web): support LAN development access

* fix(wizard): parse ranked model selection entries

* feat(wizard): add inbound bot verification

* feat(wizard): add floating page bot verification

* fix(wizard): repair HTTP bot inbound test setup

* feat(wizard): streamline custom model onboarding

* feat(wizard): label page bot test preview

* style(space): apply ruff formatting

* fix(wizard): polish AI engine onboarding

* fix(wizard): clarify local account message test

* feat(wizard): animate AI engine transitions

* fix(wizard): align AI engine setup headers

---------

Co-authored-by: langbot-dev <langbot@users.noreply.github.com>
Co-authored-by: RockChinQ <rockchinq@gmail.com>

src/langbot/templates/embed/widget.js

@@ -7,6 +7,9 @@
   // Read config from script tag data attributes
   var scriptEl = document.currentScript;
   var scriptTitle = scriptEl ? scriptEl.getAttribute("data-title") : null;
+  var scriptTestNotice = scriptEl
+    ? scriptEl.getAttribute("data-test-notice")
+    : null;
 
   // ========== i18n ==========
   var I18N = {
@@ -192,6 +195,7 @@
     .lb-header-btn { background: none; border: none; color: #fff; cursor: pointer; padding: 4px; border-radius: 6px; display: flex; align-items: center; justify-content: center; opacity: 0.8; transition: opacity 0.15s; }\
     .lb-header-btn:hover { opacity: 1; }\
     .lb-header-btn svg { width: 18px; height: 18px; fill: currentColor; }\
+    .lb-test-notice { padding: 8px 16px; border-bottom: 1px solid #fde68a; background: #fffbeb; color: #92400e; font-size: 12px; line-height: 1.5; text-align: center; flex-shrink: 0; }\
     .lb-messages { flex: 1; overflow-y: auto; padding: 16px; display: flex; flex-direction: column; gap: 16px; scroll-behavior: smooth; }\
     .lb-messages::-webkit-scrollbar { width: 6px; }\
     .lb-messages::-webkit-scrollbar-track { background: transparent; }\
@@ -1240,6 +1244,14 @@
     // Root container
     var root = document.createElement("div");
     root.id = "langbot-widget-root";
+    root.langbotDestroy = function () {
+      wsDisconnect();
+      if (state.historyReloadTimer) {
+        clearTimeout(state.historyReloadTimer);
+        state.historyReloadTimer = null;
+      }
+      root.remove();
+    };
     document.body.appendChild(root);
 
     var shadow = root.attachShadow({ mode: "open" });
@@ -1328,6 +1340,14 @@
     header.appendChild(headerActions);
     panel.appendChild(header);
 
+    if (scriptTestNotice) {
+      var testNotice = document.createElement("div");
+      testNotice.className = "lb-test-notice";
+      testNotice.setAttribute("role", "note");
+      testNotice.textContent = scriptTestNotice;
+      panel.appendChild(testNotice);
+    }
+
     // Messages area
     var messages = document.createElement("div");
     messages.className = "lb-messages";

src/langbot/templates/metadata/pipeline/ai.yaml

@@ -325,7 +325,7 @@ stages:
           zh_Hans: API 密钥
         type: string
         required: true
-        default: 'your-api-key'
+        default: ''
   - name: n8n-service-api
     label:
       en_US: n8n Workflow API