Add styled, burned-in subtitles to any video using VEED's Subtitles API. Handles the full pipeline — transcribe, style, and render — in one call, returning a finished MP4 with captions baked in. Use when: "add subtitles to this video", "burn in captions", "caption this video", "add animated subtitles", "subtitle this in Spanish/French/etc", "style my subtitles". Accepts local file paths or public URLs, with 27 presets and optional SRT input. NOT for: generating standalone .srt files without rendering (this skill always returns a video with burned-in subtitles).