Customize: First light particle sunrise

Write code that renders one 30-second MP4, "FIRST LIGHT". Use only public tools
(a compiler, Python, ffmpeg): no AI generators, no stock assets, no samples.

One unbroken shot of millions of glowing particles that only transform, night
into morning:
- 0–3s: in darkness, a warm heartbeat spark with three orbiting comets inhales.
- 3–9s: it detonates into veils of cream, cyan, blue and violet silk that expand
  past the camera.
- 9–15s: the veils wind into a gold-cored spiral galaxy; the camera drops to skim it.
- 15–21s: it lifts into a knot of blue threads with racing pulses; fly through it.
- 21–30s: the threads lie down as ocean rows; the sun rises into a blue sky with
  a gold glitter road on the water; fade out.

Look: cinematic, not a screensaver. Ink-navy dark, sky blue, cream highlights,
warmth only at sunrise. Shallow depth of field, motion blur, glow; morphs flow
like fabric, not dust.

Sound, synthesized in code and synced to the picture: drone and heartbeat, an
impact on the detonation, pads and a rising arpeggio, then a major-key sunrise
with bells and surf.

Output: 1920×1080, 30 fps, exactly 30s, H.264 with stereo audio. Check real
frames from the final file before delivering.

For best results, run it with Claude Fable 5.2.