Renz f5f302a11c Add authentication mismatch detection and pgpass support ...

Phase 1: Detection & Guidance
- Detect OS user vs DB user mismatch
- Identify PostgreSQL authentication method (peer/ident/md5)
- Show helpful error messages with 4 solutions:
  1. sudo -u <user> (for peer auth)
  2. ~/.pgpass file (recommended)
  3. PGPASSWORD env variable
  4. --password flag

Phase 2: pgpass Support
- Auto-load passwords from ~/.pgpass file
- Support standard PostgreSQL pgpass format
- Check file permissions (must be 0600)
- Support wildcard matching (host:port:db:user:pass)

Tested on CentOS Stream 10 with PostgreSQL 16

2025-11-07 14:43:34 +00:00

16 MiB

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