- Add config/sqlnet.ora with ALLOWED_LOGON_VERSION=8 for old client support
- Add scripts/fix-sqlnet.sh startup script to persist config across container restarts
- Update README with ORA-28040 troubleshooting, ODBC connection params, and deployment instructions
- Fix SID description: Oracle 18c has PDB (XEPDB1), not non-CDB
- Update container recreation instructions with startup scripts volume
Resolves ORA-28040: No matching authentication protocol when connecting
from Windows ODBC with Oracle Instant Client 11.2
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>