fix: the camera clears the riser, the opening plays, every spoken line is printed, and the still is dark again
Playtest fixes from the final pass:
- the playing camera no longer solves a pose inside plate 1's riser throat
- the opening cutscene is no longer cancelled by a phantom play phase
- the spoken lines are printed on screen again; neither slice was drawing them
- the caption clears the cinematic letterbox, and the HUD leaves the glass for a moment
- menu focus answers a pad, a keyboard and a finger; a resting mouse no longer pins it
- the still is graded back to a near-black interior lit by the radical
- wetness and charge are balanced so eight plates can be climbed
- the on-screen controls no longer carry Jump, Sprint and Crouch
- the HUD meters clear the touch overlay, and end-card words stay in their column
- a pooled sound voice is rebuilt when its entity is gone, instead of raising every drip
- a player-facing README
