This PR addresses a bug where uploads weren't being cleared after successfully posting a new private message in the AI bot conversations interface. Here's what the changes do:
## Main Fix:
- Makes the `prepareAndSubmitToBot()` method async and adds proper error handling
- Adds `this.uploads.clear()` after successful submission to clear all uploads
- Adds a test to verify that the "New Question" button properly resets the UI with no uploads
## Additional Improvements:
1. **Dynamic Character Length Validation**:
- Uses `siteSettings.min_personal_message_post_length` instead of hardcoded 10 characters
- Updates the error message to show the dynamic character count
- Adds proper pluralization in the localization file for the error message
2. **Bug Fixes**:
- Adds null checks with optional chaining (`link?.topic?.id`) in the sidebar code to prevent potential errors
3. **Code Organization**:
- Moves error handling from the service to the controller for better separation of concerns
This commit adds an empty state when the user doesn't have any PM history. It ALSO retains the new conversation button in the sidebar so it no longer jumps. The button is disabled, icon, and text are all updated.
# Preview
https://github.com/user-attachments/assets/3fe3ac8f-c938-4df4-9afe-11980046944d
# Details
- Group pms by `last_posted_at`. In this first iteration we are group by `7 days`, `30 days`, then by month beyond that.
- I inject a sidebar section link with the relative (last_posted_at) date and then update a tracked value to ensure we don't do it again. Then for each month beyond the first 30days, I add a value to the `loadedMonthLabels` set and we reference that (plus the year) to see if we need to load a new month label.
- I took the creative liberty to remove the `Conversations` section label - this had no purpose
- I hid the _collapse all sidebar sections_ carrot. This had no purpose.
- Swap `BasicTopicSerializer` to `ListableTopicSerializer` to get access to `last_posted_at`
Overview
This PR introduces a Bot Homepage that was first introduced at https://ask.discourse.org/.
Key Features:
Add a bot homepage: /discourse-ai/ai-bot/conversations
Display a sidebar with previous bot conversations
Infinite scroll for large counts
Sidebar still visible when navigation mode is header_dropdown
Sidebar visible on homepage and bot PM show view
Add New Question button to the bottom of sidebar on bot PM show view
Add persona picker to homepage
