feat(backend): settings, upload media, seed données démo

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

backend/app/routers/settings.py

@@ -1,2 +1,39 @@
-from fastapi import APIRouter
-router = APIRouter()
+from datetime import date
+from fastapi import APIRouter, Depends
+from sqlmodel import Session, select
+from app.database import get_session
+from app.models.settings import UserSettings, LunarCalendarEntry
+
+router = APIRouter(tags=["réglages"])
+
+
+@router.get("/settings")
+def get_settings(session: Session = Depends(get_session)):
+    rows = session.exec(select(UserSettings)).all()
+    return {r.cle: r.valeur for r in rows}
+
+
+@router.put("/settings")
+def update_settings(data: dict, session: Session = Depends(get_session)):
+    for cle, valeur in data.items():
+        row = session.exec(select(UserSettings).where(UserSettings.cle == cle)).first()
+        if row:
+            row.valeur = str(valeur)
+        else:
+            row = UserSettings(cle=cle, valeur=str(valeur))
+        session.add(row)
+    session.commit()
+    return {"ok": True}
+
+
+@router.get("/lunar")
+def get_lunar(month: str, session: Session = Depends(get_session)):
+    year, m = map(int, month.split("-"))
+    first = date(year, m, 1)
+    last_m, last_y = (m + 1, year) if m < 12 else (1, year + 1)
+    last = date(last_y, last_m, 1)
+    return session.exec(
+        select(LunarCalendarEntry)
+        .where(LunarCalendarEntry.jour >= first)
+        .where(LunarCalendarEntry.jour < last)
+    ).all()