feat: Video generation

docs/src/content/docs/features/gallery.mdx

@@ -1,14 +1,14 @@
 ---
 title: Gallery Panel
-description: Learn how to manage, organize, and use your generated images and assets with the Gallery Panel in InvokeAI.
+description: Learn how to manage, organize, and use your generated images, videos, and assets with the Gallery Panel in InvokeAI.
 lastUpdated: 2026-02-19
 sidebar:
   order: 1
 ---
 
 import { Card, CardGrid, Steps } from '@astrojs/starlight/components';
 
-The Gallery Panel is a fast way to review, find, and make use of images you've generated and loaded. The Gallery is divided into **Boards**. The *Uncategorized* board is always present, but you can create your own for better organization.
+The Gallery Panel is a fast way to review, find, and make use of images and videos you've generated and loaded. The Gallery is divided into **Boards**. The *Uncategorized* board is always present, but you can create your own for better organization. Boards are polymorphic — images and videos coexist on the same board and appear together in the gallery, sorted by creation time.
 
 ![Gallery Panel Overview](./assets/gallery.png)
 
@@ -51,10 +51,10 @@ Each board has a context menu accessible via right-click (or Ctrl+click).
 
 - **Auto-add to this Board:** If *Auto-Assign Board on Click* is disabled in settings, use this option to quickly set the selected board as the default destination for new images.
 - **Download Board:** Packages all images within the board into a `.zip` file. A notification link will be provided when the download is ready.
-- **Delete Board:** Permanently removes the board and all of its contents.
+- **Delete Board:** Permanently removes the board and all of its contents — both images **and** videos.
 
 :::danger
-Deleting a board will **permanently delete all images** contained within it. Proceed with caution!
+Deleting a board will **permanently delete all images and videos** contained within it. Proceed with caution!
 :::
 
 ### Board Contents
@@ -130,6 +130,27 @@ Additionally, each image has a context menu (right-click or Ctrl+click) with pow
 
 ---
 
+## Videos in the Gallery
+
+Videos generated by InvokeAI (currently from the Wan 2.2 model family) appear alongside images in the same gallery view. Each video item displays a first-frame still as its thumbnail with a play badge in the corner; selecting it opens the video in the viewer where you can play it back inline.
+
+### Uploading Videos
+
+You can upload existing videos to a board via the standard drop-or-upload affordance. The upload pipeline accepts **MP4 files only**. Other containers (`.mov`, `.webm`, `.mkv`) are not transcoded on upload and are rejected at the API boundary — re-encode them to MP4 (for example with `ffmpeg -i input.mov -c:v libx264 output.mp4`) before uploading.
+
+### Video Context Menu
+
+Each video has a context menu with the same organization actions as images, plus video-appropriate variants:
+
+- **Open in New Tab / Download:** Opens or saves the raw MP4 file.
+- **Star Video:** Pins the video to the top of the gallery.
+- **Change Board:** Moves the video to a different board. *(Drag-and-drop onto board thumbnails also works.)*
+- **Delete Video:** Permanently deletes the video and its thumbnail.
+
+Videos count toward board contents: a board with two images and three videos shows five items in the polymorphic gallery list and reports both totals in its stats.
+
+---
+
 ## Summary
 
 This walkthrough covers the Gallery interface and Boards. For guidance on prompting and generation workflows, please refer to the [Prompting Guide](/concepts/prompting-guide/) and [AI Image Generation](/concepts/image-generation/).