Trust ticks.parquet `t` and `event_seconds`

Minimap: time frames from tick column (t column is non-monotonic across pauses)

Minimap: fix ticks.parquet column names (x/y/z/yaw/armor_value/team_num)

Minimap: read ticks.parquet instead of world.preview.jsonl

Nerfies-style home, paper-style match header, prettier setup, dataset README

Initial CS2 render dataset viewer