Add portal web simulator, SPI bridges, and Pico firmware updates.

Bring the five-panel hex portal online with a browser 3D/schematic preview, Pi SPI backends, and renamed multi-panel Pico UDP firmware.

Co-authored-by: Cursor <cursoragent@cursor.com>

examples/panel_rgb_cycle.py

@@ -7,14 +7,9 @@ import argparse
 import sys
 import time
 
+from leds.colors import RGB_CYCLE
 from leds.panel_udp import PanelClient, add_panel_args, format_panel_targets, panel_targets_from_args
 
-COLORS = (
-    ("RED", (255, 0, 0)),
-    ("GREEN", (0, 255, 0)),
-    ("BLUE", (0, 0, 255)),
-)
-
 
 def main() -> int:
     parser = argparse.ArgumentParser(description="RGB cycle on Pico panel(s)")
@@ -28,7 +23,7 @@ def main() -> int:
     try:
         with PanelClient.from_args(args) as client:
             while True:
-                for label, color in COLORS:
+                for label, color in RGB_CYCLE:
                     print(f"  {label}")
                     client.fill(color)
                     time.sleep(args.pause)