Register high-flow filament defaults for every U1 nozzle variant in the
wizard, and select compatible filaments for the standard and mixed-nozzle
printers. Size the shared U1 extruder vectors to its four physical tools.
Replace stale 3x flow claims with the source-specific filament guidance.
Bump the Snapmaker bundle version.
Co-authored-by: Codex <noreply@openai.com>