Add Sculk Catalyst recipe with Diamond Shards

- Added alternative recipe to craft Sculk Catalyst
- Recipe: 4 Diamond Shards + 4 Soul Sand + 1 Soul Soil
- Provides a way to craft Sculk Catalyst without Sculk Sensor

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/main/resources/data/custom_ore_gen/recipes/sculk_catalyst_diamond_shard.json

@@ -0,0 +1,24 @@
+{
+  "type": "minecraft:crafting_shaped",
+  "category": "misc",
+  "pattern": [
+    "DSD",
+    "SCS",
+    "DSD"
+  ],
+  "key": {
+    "D": {
+      "item": "custom_ore_gen:diamondshard"
+    },
+    "S": {
+      "item": "minecraft:soul_sand"
+    },
+    "C": {
+      "item": "minecraft:soul_soil"
+    }
+  },
+  "result": {
+    "item": "minecraft:sculk_catalyst",
+    "count": 1
+  }
+}