Add ShadeCapability lookup to replace hardcoded model string checks for
tilt/tilt-only selection. Add velocity number entity (0–100) and pass
velocity through all movement paths including open/close. Remove
redundant device_info property overrides and deduplicate hex parsing.
Reuse the home key from already-configured shades so adding subsequent
shades skips the key step. Show human-readable shade names from the hub
in the device picker. Allow selecting multiple shades at once instead of
repeating the flow for each one. Default to hub fetch as the key method.
Richard Mann