Drops these from the build-time apt install in Dockerfile.litespeed; they
now install at entrypoint time only when environment=DEV, guarded by
'command -v mysqld' so container restarts skip the apt step.
Mirrors the cac:phpNN pattern. The mysql CLI client is already in the
litespeedtech/openlitespeed base, so wp-cli + DEV creds-bootstrap still work
without a build-time client install.
Measured (php83 / OLS 1.8.4):
PROD image: 1.64 GB -> 1.20 GB (~440 MB savings)
PROD first-200 boot: unchanged at ~1.5s
DEV first boot: ~51s (apt install cost — one-time per container)
DEV second boot: ~6s (cache hit, same as PROD)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
