Pigsty v0.5.1

Highlights

• Fixed PostgreSQL cluster and instance dashboard issues found after v0.5.0.
• Switched the default PostgreSQL mirror to Zhejiang University for faster regional installs.
• Refreshed the README and consolidated the v0.5 documentation snapshot.

v0.5.1 is a tagged maintenance snapshot without a separately authored GitHub Release body.

Sources

• Git tag and source tree
• Pigsty v0.5 release article
• Source comparison: v0.5.0...v0.5.1