receiver: no change to protocol; revert temporary color-index handling; radiate uses ticks_us timing; development: ensure dev.py upload workflow retained

src/main.py

@@ -66,6 +66,9 @@ def main():
                 patterns.n4 = bar.get("n4", defaults.get("n4", patterns.n4))
                 patterns.step = bar.get("s", defaults.get("s", patterns.step))
                 
+                # Print received parameters
+                print(f"Params: br={patterns.brightness}, dl={patterns.delay}, n1={patterns.n1}, n2={patterns.n2}, n3={patterns.n3}, n4={patterns.n4}, step={patterns.step}")
+                
                 # Only execute pattern if it's a beat message
                 if message_type == "b":  # Beat message
                     selected_pattern = bar.get("pt", defaults.get("pt", "off"))