Wire wrist placement settings through config and installer

scripts/install_payload.py

@@ -23,6 +23,7 @@ DIGEST_RE = re.compile(r"[a-fA-F0-9]{64}\Z")
 CONFIG_DEFAULTS = {
     "font": "",
     "input_priority": "normal",
+    "wrist": {"x": 0, "y": 0.18, "z": 0.089, "width": 0.30, "roll_degrees": 0},
     "theme": {"background": "#0c101b", "card": "#141c2b", "ink": "#e6f0f9",
               "muted": "#97adc1", "accent": "#1ff0a4", "warning": "#ff6e87",
               "frame_start": "#1fff91", "frame_end": "#1f70ff"},
@@ -79,6 +80,13 @@ def normalized_config(data):
     fixed = {"font": data.get("font") if isinstance(data.get("font"), str) else ""}
     priority = data.get("input_priority", "normal")
     fixed["input_priority"] = priority if priority in ("normal", "experimental") else "normal"
+    source = data.get("wrist")
+    source = source if isinstance(source, dict) else {}
+    fixed["wrist"] = {}
+    for name, default in CONFIG_DEFAULTS["wrist"].items():
+        value = source.get(name, default)
+        limit = (.15, .6) if name == "width" else (-180, 180) if name == "roll_degrees" else (-.3, .3)
+        fixed["wrist"][name] = value if type(value) in (int, float) and limit[0] <= value <= limit[1] else default
     for section in ("theme", "buttons"):
         source = data.get(section)
         source = source if isinstance(source, dict) else {}