Added

• Automatic migration from v0.2.x databases.
• $_ZO_EXCLUDE_DIRS to prevent certain directories from being added to the database.
• Support for POSIX-compliant shells.

Changed

• Database location defaults to user's local data directory.
• Database schema now includes a version number.
• migrate subcommand renamed to import.

Fixed

• Achieve thread safety using unique temporary database file names for each zoxide instance.
• Incomprehensive "could not allocate" message on database corruption.