[bojemoi] refactor(borodino): standardize env var management across ak47/bm12/uzi

Commit `9a69b23`

Stack: add PG_HOST/PORT/USER/PASSWORD/DBNAME to all 3 services; add IP2LOC_DBNAME for ak47
ak47: replace hardcoded user/password/dbname + ping-based IP resolution with $PG_* env vars; use pg_isready with hostname directly
bm12: PG_HOST was hardcoded “postgres” → os.getenv(); remove hardcoded PG_PASSWORD default; add PG_PORT to psycopg2.connect()
uzi: same as bm12; MODE_RUN was hardcoded 1 → os.getenv(“MODE_RUN”)

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com