restore-composer-drag-and-drop-file-attach-on-input-field.md

Feature: Restore composer drag-and-drop file attach on input field

Prerequisites

• App is running with a selected thread and active composer.
• At least one local file is available to drag from Finder/File Explorer.

Steps

1. Drag a file over the composer input area.
2. Confirm drag highlight/overlay appears above the input.
3. Drop the file on the composer input field.
4. Verify the file is attached in composer chips.
5. Repeat with an image file and verify image preview appears.
6. In dark mode, repeat steps 1-2 and verify overlay remains readable.

Expected Results

• Composer shows drag-active visual state while file is hovering.
• Dropped files are attached through the same attachment pipeline as regular uploads.
• Image drops create image preview attachments.
• Dark mode drag overlay uses dark-theme colors and remains legible.

Rollback/Cleanup

• Remove attached files/images from the composer before closing the test thread.