feat(patterns): winter icicles blizzard rime in controller catalogue

Register pattern metadata and test presets for new led-driver effects; bump led-driver submodule.

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

db/pattern.json

@@ -260,6 +260,36 @@
     "has_background": true,
     "supports_manual": true
   },
+  "icicles": {
+    "n1": "Anchor spacing (LEDs)",
+    "n2": "Max icicle length (LEDs)",
+    "n3": "Phase step per refresh",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "blizzard": {
+    "n1": "Flake density",
+    "n2": "Fall speed",
+    "n3": "Wind (128 = centred; lower/raise for drift bias)",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
+  "rime": {
+    "n1": "Crystallisation rate",
+    "n2": "Melt (decay) per refresh",
+    "n3": "Spark cap (LEDs refreshed per cycle)",
+    "max_colors": 10,
+    "min_delay": 10,
+    "max_delay": 10000,
+    "has_background": true,
+    "supports_manual": true
+  },
   "heartbeat": {
     "n1": "Pulse 1 ms",
     "n2": "Pulse 2 ms",