1.1.3

feat: support AND condition groups for property filtering

Property filtering is now modeled as condition groups: all conditions
inside a group must match (AND), groups are alternatives (OR), each
group has its own pick count. Each condition supports equals / contains
/ not equals.

Legacy flat propertyFilters in saved settings and per-folder profiles
are auto-migrated into single-condition groups on load.

Add a changelog and updated usage in the General settings tab, refresh
README, and bump version to 1.1.3.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>