Migrate build target markers to keyboard.json - TUV (#23514)

keyboards/tweetydabird/lotus58/nanoboot/keyboard.json

@@ -0,0 +1,32 @@
+{
+    "build": {
+        "lto": true
+    },
+	"pin_compatible": "promicro",
+    "processor": "atmega32u4",
+    "encoder": {
+        "rotary": [
+            {"pin_a": "F5", "pin_b": "F4", "resolution": 2}
+        ]
+    },
+    "matrix_pins": {
+        "cols": ["B1", "B2", "B3", "B6", "F7", "F6"],
+        "rows": ["D4", "C6", "D7", "E6", "B4"]
+    },
+    "split": {
+        "encoder": {
+            "right": {
+                "rotary": [
+                    {"pin_a": "F4", "pin_b": "F5", "resolution": 2}
+                ]
+            }
+        },
+        "handedness": {
+            "pin": "B5"
+        },
+        "soft_serial_pin": "D2",
+    },
+    "ws2812": {
+        "pin": "D3"
+    },
+}