feat(face): complete widget set (phone batt, sleep, omens)

Phone battery via navigator.getBattery(), honest "--" when unavailable.
Sleep widget enabled with M marker. Omens derived from weather condition:
fog/rain/snow/thunder produce advisory text; clear shows empty.
All 11 widget types rendered; layout enables all by default.

Refs: DESIGN.md §5 widget set complete.

nine-hazes-face/package.json

@@ -18,7 +18,8 @@
     "messageKeys": ["taskName", "syncTime", "clockOff", "boundSec", "used",
                     "taskCount", "curType", "curRem", "status", "abortCode",
                     "pendItems", "pendXp", "dictV", "serverDown", "requestSync",
-                    "weatherTemp", "weatherHi", "weatherLo", "weatherTs", "weatherCond"],
+                    "weatherTemp", "weatherHi", "weatherLo", "weatherTs",
+                    "weatherCond", "phoneBatt"],
     "resources": {
       "media": []
     }