v0.2.0-GuppyKE

First GuppyKE-branded release — the big on-screen feature wave.

Added

• Live Z-offset baby-stepping panel (0.005 / 0.01 mm steps, guarded when not homed).
• Firmware Retraction live-tuning panel.
• Console redesigned as a drill-down command browser.
• Macros redesigned — favorites, collapsible rows, button navigation.
• Notifications split into toasts, modals, and a print-done screen; on-screen toasts for Klipper events.
• Fans — friendly names, read-only fans (heater_fan / output-pin fans), correct editable/read-only split.
• Exclude Object — tap-to-exclude bed map during a print.
• Spoolman filament confirmation at print start.
• Print-status overlay reworked — bigger, preview-led, with a "Paused" chip; Homing/Extrude allowed while
  paused; the mesh is viewable (not mutable) during a print.
• Extruder heats all filament actions to the selected temp, with clearer feedback.
• Mainsail-matched ETA (averages file / filament / slicer estimates).

Changed

• EMA-smoothed resistive ns2009 touch input for smoother scrolling.
• Thread-safe State::get_data, tighter LVGL cadence, evdev tracking-id press fix.
• CI: lv_drivers now fetched from the coreflake1 fork (no build-time patch).