Each prayer in the library has an optional default_bead_type (small/large/
crucifix). Standard prayers get sensible defaults: Our Father=large,
Hail Mary=small, Sign of Cross=crucifix, Divine Mercy beads accordingly.
In the sequence, each step card shows a bead selector (—/○/●/✝) so users
can override the default per step. Adding a prayer pre-fills its default.
Bead library icon hints (○●✝) appear on prayer cards in the library.
Modal now includes a Bead selector for creating/editing prayers.
Remove the separate Bead Markers library section — beads live on prayers.
build_slides: prayer steps with bead_type now get a real bead_index so
the ring advances correctly during presentation.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
