feat(patterns): register northern wave, candle glow, starfall, ice sparkle

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

db/pattern.json

@@ -290,6 +290,46 @@
     "has_background": true,
     "supports_manual": true
   },
+  "northern_wave": {
+    "n1": "Spatial period (LEDs)",
+    "n2": "Blend strength",
+    "n3": "Drift speed",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "candle_glow": {
+    "n1": "Candle count",
+    "n2": "Glow width (LEDs)",
+    "n3": "Flicker strength",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "starfall": {
+    "n1": "Spawn rate",
+    "n2": "Fall speed",
+    "n3": "Streak length",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "ice_sparkle": {
+    "n1": "Sparkle rate",
+    "n2": "Decay per refresh",
+    "n3": "Halo width (LEDs)",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
   "heartbeat": {
     "n1": "Pulse 1 ms",
     "n2": "Pulse 2 ms",