Add safe transcription errors and opt-in private debug logging

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",
+    "advanced_debug": False,
     "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",
@@ -81,6 +82,8 @@ 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"
+    debug = data.get("advanced_debug", False)
+    fixed["advanced_debug"] = debug if type(debug) is bool else False
     source = data.get("wrist")
     source = source if isinstance(source, dict) else {}
     fixed["wrist"] = {}