diag: per-publisher valid=False logging; 30min shutdown; daylight fix; UI tweaks

CLAUDE.md: added a "Logging" rule — never use cloudlog (upstream cloud
pipeline, effectively a black hole for us), always use
print(..., file=sys.stderr, flush=True). Manager redirects each process's
stderr to /data/log2/current/{proc}.log. Prefix our lines with "CLP ".

Diagnostic logging — when a publisher sets its own msg.valid=False, log
which specific subscriber tripped the check. Only fires on transition
(True→False) so we don't spam. Covers the services whose cascades we've
been chasing:
  - frogpilot_planner (frogpilotPlan)
  - longitudinal_planner (longitudinalPlan)
  - paramsd (liveParameters)
  - calibrationd (liveCalibration)
  - torqued (liveTorqueParameters)
  - dmonitoringd (driverMonitoringState)

gpsd.is_daylight: fixed a day-boundary bug where the function would flip
to "night" at UTC midnight regardless of actual local sunset. At 85W
sunset is ~00:20 UTC next day, so between local 8pm and actual sunset
the function used *tomorrow's* sunrise/sunset and said night. Now checks
yesterday/today/tomorrow windows with UTC-day offsets.

ui/onroad.cc: nightrider tire-path outline is now light blue (#99CCFF)
at 3px (was white/status-tinted at 6px); lane lines 5% thinner (float
pen width).

thermald/power_monitoring: auto-shutdown timer 10min → 30min.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

system/clearpilot/gpsd.py

@@ -20,17 +20,16 @@ from openpilot.common.time import system_time_valid
 from openpilot.system.hardware.tici.pins import GPIO
 
 
-def is_daylight(lat: float, lon: float, utc_dt: datetime.datetime) -> bool:
-  """Return True if it's between sunrise and sunset at the given location.
-  Uses NOAA simplified solar position equations. Pure math, no external libs."""
+def _sunrise_sunset_min(lat: float, lon: float, utc_dt: datetime.datetime):
+  """Compute (sunrise_min, sunset_min) in UTC minutes since midnight of utc_dt's day.
+  Values can be negative or >1440 for western/eastern longitudes. Returns
+  (None, None) for polar night, ('always', 'always') for midnight sun."""
   n = utc_dt.timetuple().tm_yday
   gamma = 2 * math.pi / 365 * (n - 1 + (utc_dt.hour - 12) / 24)
-  # Equation of time (minutes)
   eqtime = 229.18 * (0.000075 + 0.001868 * math.cos(gamma)
            - 0.032077 * math.sin(gamma)
            - 0.014615 * math.cos(2 * gamma)
            - 0.040849 * math.sin(2 * gamma))
-  # Solar declination (radians)
   decl = (0.006918 - 0.399912 * math.cos(gamma)
           + 0.070257 * math.sin(gamma)
           - 0.006758 * math.cos(2 * gamma)
@@ -42,14 +41,41 @@ def is_daylight(lat: float, lon: float, utc_dt: datetime.datetime) -> bool:
   cos_ha = (math.cos(zenith) / (math.cos(lat_rad) * math.cos(decl))
             - math.tan(lat_rad) * math.tan(decl))
   if cos_ha < -1:
-    return True   # midnight sun
+    return ('always', 'always')   # midnight sun
   if cos_ha > 1:
-    return False  # polar night
+    return (None, None)           # polar night
   ha = math.degrees(math.acos(cos_ha))
   sunrise_min = 720 - 4 * (lon + ha) - eqtime
   sunset_min = 720 - 4 * (lon - ha) - eqtime
+  return (sunrise_min, sunset_min)
+
+
+def is_daylight(lat: float, lon: float, utc_dt: datetime.datetime) -> bool:
+  """Return True if the sun is currently above the horizon at (lat, lon).
+
+  Handles west-of-Greenwich correctly: at UTC midnight it may still be
+  evening local time, and the relevant sunset is the PREVIOUS UTC day's
+  value (which is >1440 min if we re-ref to that day, i.e. it's past
+  midnight UTC). Symmetric case for east-of-Greenwich at the other end.
+
+  Strategy: compute sunrise/sunset for yesterday, today, and tomorrow (each
+  relative to its own UTC midnight), shift them all onto today's clock
+  (yesterday = -1440, tomorrow = +1440), and check if now_min falls inside
+  any of the three [sunrise, sunset] intervals.
+  """
   now_min = utc_dt.hour * 60 + utc_dt.minute + utc_dt.second / 60
-  return sunrise_min <= now_min <= sunset_min
+  for day_offset in (-1, 0, 1):
+    d = utc_dt + datetime.timedelta(days=day_offset)
+    sr, ss = _sunrise_sunset_min(lat, lon, d)
+    if sr == 'always':
+      return True
+    if sr is None:
+      continue  # polar night this day
+    sr += day_offset * 1440
+    ss += day_offset * 1440
+    if sr <= now_min <= ss:
+      return True
+  return False
 
 
 def at_cmd(cmd: str) -> str: