Rename patterns module to presets

Rename the driver module and update imports so tests and main entry use the new presets naming, while moving Preset to its own file.

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

src/main.py

@@ -2,14 +2,14 @@ from settings import Settings
 from machine import WDT
 from espnow import ESPNow
 import network
-from patterns import Patterns
+from presets import Presets
 from utils import convert_and_reorder_colors
 import json
 
 settings = Settings()
 print(settings)
 
-patterns = Patterns(settings["led_pin"], settings["num_leds"])
+presets = Presets(settings["led_pin"], settings["num_leds"])
 
 wdt = WDT(timeout=10000)
 wdt.feed()
@@ -24,7 +24,7 @@ e.active(True)
 
 while True:
     wdt.feed()
-    patterns.tick()
+    presets.tick()
     if e.any():
         host, msg = e.recv()
         data = json.loads(msg)
@@ -35,7 +35,7 @@ while True:
         # Global brightness (0–255) for this device
         if "b" in data:
             try:
-                patterns.b = max(0, min(255, int(data["b"])))
+                presets.b = max(0, min(255, int(data["b"])))
             except (TypeError, ValueError):
                 pass
         if "presets" in data:
@@ -43,11 +43,11 @@ while True:
                 # Convert hex color strings to RGB tuples and reorder based on device color order
                 if "c" in preset_data:
                     preset_data["c"] = convert_and_reorder_colors(preset_data["c"], settings)
-                patterns.edit(name, preset_data)
+                presets.edit(name, preset_data)
         if settings.get("name") in data.get("select", {}):
             select_list = data["select"][settings.get("name")]
             # Select value is always a list: ["preset_name"] or ["preset_name", step]
             if select_list:
                 preset_name = select_list[0]
                 step = select_list[1] if len(select_list) > 1 else None
-                patterns.select(preset_name, step=step)
+                presets.select(preset_name, step=step)