bump version to 0.3.1

security: fix SSRF, add URL validation, fail2ban, and body size limit

bump version to 0.3.0

feat: add two-tier render cache with S3-compatible storage

feat: add outbound request filtering with StevenBlack/hosts blocklist

bump version to 0.2.0

fix: pre-commit formatting for dashboard.py

feat: improve dashboard UI with badges, capacity bar, and responsive layout (#20)

bump default max_concurrent from 3 to 5

add stats dashboard at GET / and restrict deploy-hf triggers

initial release v0.1.0: headless browser rendering API