⚡️ Reset remembered state if the typebot is updated (#1675)

Wipe stored chat state if a typebot is updated.

Resolves #1508 
Resolves #1427  



https://github.com/user-attachments/assets/7668d6a7-2916-4158-b715-1cccaeaf6ddf

---------

Co-authored-by: Baptiste Arnaud <baptiste.arnaud95@gmail.com>

packages/bot-engine/startSession.ts

@@ -278,6 +278,7 @@ export const startSession = async ({
         theme: sanitizeAndParseTheme(typebot.theme, {
           variables: initialState.typebotsQueue[0].typebot.variables,
         }),
+        publishedAt: typebot.updatedAt,
       },
       dynamicTheme: parseDynamicTheme(newSessionState),
       logs: startLogs.length > 0 ? startLogs : undefined,
@@ -296,6 +297,7 @@ export const startSession = async ({
       theme: sanitizeAndParseTheme(typebot.theme, {
         variables: initialState.typebotsQueue[0].typebot.variables,
       }),
+      publishedAt: typebot.updatedAt,
     },
     messages,
     input,