PG19 beta benchmark report (ROWS=200000)

Environment:
- Docker base image: postgres:19beta1-trixie
- pgrx: 0.19.1

Compared functions:
- ST_EvilTransform
- Regex_EvilTransform

Scenario: 4326 -> 990001
- ST_EvilTransform: 100.307 ms
- Regex_EvilTransform: 2874.719 ms

Scenario: 990002 -> 3857 (via 4326)
- ST_EvilTransform: 182.430 ms
- Regex_EvilTransform: 8230.002 ms
