feat(models): tables MeteoStation + MeteoOpenMeteo (SQLModel)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/app/models/__init__.py

@@ -1,5 +1,11 @@
 from app.models.garden import Garden, GardenCell, GardenImage, Measurement  # noqa
-from app.models.plant import PlantVariety, PlantImage  # noqa
+from app.models.plant import Plant, PlantImage  # noqa
 from app.models.planting import Planting, PlantingEvent  # noqa
 from app.models.task import Task  # noqa
 from app.models.settings import UserSettings, LunarCalendarEntry  # noqa
+from app.models.tool import Tool  # noqa
+from app.models.media import Media, Attachment  # noqa
+from app.models.dicton import Dicton  # noqa
+from app.models.astuce import Astuce  # noqa
+from app.models.recolte import Recolte, Observation  # noqa
+from app.models.meteo import MeteoStation, MeteoOpenMeteo  # noqa

backend/app/models/meteo.py

@@ -0,0 +1,36 @@
+from typing import Optional
+from sqlmodel import Field, SQLModel
+
+
+class MeteoStation(SQLModel, table=True):
+    """Données collectées depuis la station WeeWX locale."""
+    __tablename__ = "meteostation"
+
+    date_heure: str = Field(primary_key=True)  # "2026-02-22T14:00"
+    type: str = "current"  # "current" | "veille"
+    temp_ext: Optional[float] = None   # °C extérieur
+    temp_int: Optional[float] = None   # °C intérieur (serre)
+    humidite: Optional[float] = None   # %
+    pression: Optional[float] = None   # hPa
+    pluie_mm: Optional[float] = None   # précipitations
+    vent_kmh: Optional[float] = None
+    vent_dir: Optional[str] = None     # N/NE/E/SE/S/SO/O/NO
+    uv: Optional[float] = None
+    solaire: Optional[float] = None    # W/m²
+
+
+class MeteoOpenMeteo(SQLModel, table=True):
+    """Prévisions journalières Open-Meteo."""
+    __tablename__ = "meteoopenmeteo"
+
+    date: str = Field(primary_key=True)  # "2026-02-22"
+    t_min: Optional[float] = None
+    t_max: Optional[float] = None
+    pluie_mm: Optional[float] = None
+    vent_kmh: Optional[float] = None
+    wmo: Optional[int] = None
+    label: Optional[str] = None
+    humidite_moy: Optional[float] = None
+    sol_0cm: Optional[float] = None    # temp sol surface
+    etp_mm: Optional[float] = None     # évapotranspiration
+    fetched_at: Optional[str] = None