v0.3.3

Concurrent AI generation in Quick Create

• Preview stays focused on the latest generation task, while you can switch earlier tasks from the task list.
• Running tasks keep polling independently, so starting a new generation no longer stops progress updates for earlier jobs.
• Single-run multi-image results stay on one result card with a desktop grid and mobile stack layout.
• Mock image models now support generating 1–4 images per run (default 4), with credits charged per image.
• Refined Quick Create result actions: hide the canvas title, keep result tabs right-aligned, and show card actions on desktop hover while always showing them on touch devices.
• Completed empty-state i18n for AI assets across English, Simplified Chinese, Traditional Chinese, Japanese, and Korean.