FEAT-NETATMO-06: V1 Status-Update Redesign + shared helpers foundation

Netatmo-Plugin komplett auf V1 Status-Update Layout umgebaut:
- 4-Sektionen: Aussen / Wind+Regen / Indoor / Vorhersage
- Echte 12h-History fuer MIN/MAX (vorher estimated +-2/+-4)
- Dynamische Forecast-Daten (datetime.now() + timedelta)
- DE strings durchgaengig (AUSSEN, FEUCHTE, DRUCK, Bo, HEUTE, Boerse, ...)
- 7-Farben ACeP palette (kein Greyscale, kein Anti-Alias)
- Indoor-Sensoren: rote Tag-Box + 22pt+ Temp + CO2-Bar + Batt aligned
- Chart mit 2-Tick Y-Grid (min/max), 12h Linie in Gruen
- Wetter-Icons (WMO codes) in Vorhersage, Regen-Drop-Icon pro Tag

Foundation / shared helpers:
- palette.py: BATT_*, DE_WEEKDAYS/MONTHS, WMO_ICONS, format_*,
              POWER_DEFAULTS, temp_color, co2_color, batt_color
- plugins/base.py: draw_battery, draw_compass, draw_trend,
                   draw_line_chart, draw_mini_bar, draw_weather_icon,
                   draw_deepsleep_indicator, draw_zzz_indicator,
                   _fit_size, _get_base_sans, de_* formatters
- designbase.py: THEMES dict (light/dark/retro/mag), Layout templates
                 (bereits importierbar)

Tools:
- tools/render_mockup.py: 3 design-Varianten Mockup-Generator
- tools/verify_netatmo.py: Self-verification mit dynamic mock data

tools/verify_netatmo.py

@@ -0,0 +1,63 @@
+"""Verifizierungs-Script: rendert Netatmo mit dynamischen Mock-Daten.
+
+Findet und behebt:
+1. Statische Forecast-Daten (jetzt relativ zu heute)
+2. Synthetische Outdoor-History mit groesserer Range (damit Chart nicht flach)
+3. Bessere Indoor Batt-Darstellung
+"""
+import sys
+sys.path.insert(0, '.')
+from PIL import Image, ImageDraw, ImageFont
+from plugins.netatmo import Widget
+from datetime import datetime, timedelta
+import math
+import os
+
+# FIX 1: Mock-Daten mit dynamischen Daten (heute + 2 Tage)
+now = datetime.now()
+forecast_days = [(now + timedelta(days=i)).date().isoformat() for i in range(3)]
+
+# FIX 2: Synthetische Outdoor-History mit groesserem Temperatur-Range
+# 12h-Verlauf mit sin-voller Swing (12.5 - 22.5 Grad, also 10 Grad Range)
+outdoor_temps = []
+for h in range(12):
+    t = 17.5 + 4.5 * math.sin(h / 2.2) + 1.0 * math.cos(h / 1.3)
+    outdoor_temps.append(round(t, 1))
+temp_history = ';'.join(str(t) for t in outdoor_temps)
+print(f'History: min={min(outdoor_temps)}, max={max(outdoor_temps)}, n={len(outdoor_temps)}')
+
+mock = {
+    'station_name': 'Daheim', 'place': {},
+    'main': {'name': 'Daheim', 'data': {'Temperature': 21.5, 'CO2': 620, 'Humidity': 48, 'Pressure': 1014, 'Pressure_trend': 'down'}},
+    'modules': [
+        # Aussentemperatur = letzter Wert der History
+        {'type': 'NAModule1', 'name': 'Aussen', 'data': {'Temperature': outdoor_temps[-1], 'Humidity': 67, 'Temp_history': temp_history}, 'battery_pct': 78},
+        {'type': 'NAModule2', 'name': 'Wind',   'data': {'WindStrength': 12, 'GustStrength': 24, 'WindAngle': 215}, 'battery_pct': 65},
+        {'type': 'NAModule3', 'name': 'Regen',  'data': {'RainRate': 0.0, 'sum_rain_1': 0.4, 'sum_rain_24': 6.2}, 'battery_pct': 82},
+        {'type': 'NAModule4', 'name': 'Kueche', 'data': {'Temperature': 23.5, 'CO2': 980},  'battery_pct': 88},
+        {'type': 'NAModule4', 'name': 'Schlafen', 'data': {'Temperature': 20.8, 'CO2': 1450}, 'battery_pct': 41},
+    ],
+    'forecast': {
+        'daily': {
+            'time': forecast_days,  # DYNAMISCH: heute + 2 Tage
+            'temperature_2m_max': [19, 21, 17],
+            'temperature_2m_min': [9, 11, 8],
+            'precipitation_sum': [0.0, 2.4, 8.1],
+            'weather_code': [0, 3, 61],
+        },
+    },
+}
+
+w = Widget({})
+w.fetch = lambda: mock
+fonts = {}
+for sz in [8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36, 40, 48, 60, 72, 84, 96]:
+    fonts[str(sz)] = ImageFont.truetype(os.path.join('C:/Windows/Fonts/arial.ttf'), sz)
+fonts['default'] = ImageFont.load_default()
+
+img = Image.new('RGB', (800, 480), (255, 255, 255))
+draw = ImageDraw.Draw(img)
+w.set_fonts(fonts)
+w.render(draw, fonts, 0, 0, 800, 480)
+img.save('docs/test_netatmo_v10.png')
+print(f'OK saved v10 ({now.strftime("%H:%M")})')