Implement the following plan:

# Video Pipeline: Vertical + Story-Driven

## Context
The video pipeline currently generates square (1:1) 720x720 videos with a psychoanalytic/abstract framing. The user wants:
1. **Vertical (9:16)** format optimized for phone viewing
2. **Story-driven** — the video should tell the story *of* the writing, not abstract psychoanalytic imagery. The pipeline should feel the writing, embody it, and generate a video that reflects it back as a narrative.