Release: dev to next

Adds:

• Chore: updates and cleanups (!81 - merged)
• fix(astro): link generation (!80 - merged)
• Chore: Deployment documentation (!79 - merged)
• chore(ci): add apk cache (!78 - merged)
• chore(package,ci): use POSIX-compliant schema g... (!77 - merged)
• Chore: deps + secrets (!76 - merged)