Add markdown editor toolbar and data year display on import page

CMS editor: formatting toolbar with H1-H3, bold, italic, strikethrough,
links, images, lists, blockquotes, code blocks, horizontal rules.
Keyboard shortcuts (Ctrl+B/I/D/K). Improved markdown preview rendering.

Import page: shows current data summary with year badge, stats grid,
last import date. Year input for new imports. Preview with sample table.

Backend: added data_year and data_imported_at fields to TariffParams,
returned in stats endpoint. Import sets data_imported_at automatically.
Seed sets data_year=2018.

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

backend/app/models/models.py

@@ -47,6 +47,8 @@ class TariffParams(Base):
     recettes = Column(Float, default=75000.0)
     pmax = Column(Float, default=20.0)
     vmax = Column(Float, default=2100.0)
+    data_year = Column(Integer, nullable=True)
+    data_imported_at = Column(DateTime, nullable=True)
 
     commune = relationship("Commune", back_populates="tariff_params")
 

backend/app/routers/households.py

@@ -1,3 +1,5 @@
+from datetime import datetime
+
 from fastapi import APIRouter, Depends, HTTPException, UploadFile, File
 from fastapi.responses import StreamingResponse
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -6,7 +8,7 @@ import io
 import numpy as np
 
 from app.database import get_db
-from app.models import Commune, Household, AdminUser
+from app.models import Commune, Household, TariffParams, AdminUser
 from app.schemas import HouseholdOut, HouseholdStats, ImportPreview, ImportResult
 from app.services.auth_service import get_current_admin
 from app.services.import_service import parse_import_file, import_households, generate_template_csv
@@ -31,6 +33,12 @@ async def household_stats(slug: str, db: AsyncSession = Depends(get_db)):
     if not commune:
         raise HTTPException(status_code=404, detail="Commune introuvable")
 
+    # Load tariff params for data_year
+    params_result = await db.execute(
+        select(TariffParams).where(TariffParams.commune_id == commune.id)
+    )
+    params = params_result.scalar_one_or_none()
+
     hh_result = await db.execute(
         select(Household).where(Household.commune_id == commune.id)
     )
@@ -40,6 +48,8 @@ async def household_stats(slug: str, db: AsyncSession = Depends(get_db)):
         return HouseholdStats(
             total=0, rs_count=0, rp_count=0, pro_count=0,
             total_volume=0, avg_volume=0, median_volume=0, voted_count=0,
+            data_year=params.data_year if params else None,
+            data_imported_at=params.data_imported_at if params else None,
         )
 
     volumes = [h.volume_m3 for h in households]
@@ -52,6 +62,8 @@ async def household_stats(slug: str, db: AsyncSession = Depends(get_db)):
         avg_volume=float(np.mean(volumes)),
         median_volume=float(np.median(volumes)),
         voted_count=sum(1 for h in households if h.has_voted),
+        data_year=params.data_year if params else None,
+        data_imported_at=params.data_imported_at if params else None,
     )
 
 
@@ -82,6 +94,7 @@ async def preview_import(
 async def do_import(
     slug: str,
     file: UploadFile = File(...),
+    data_year: int | None = None,
     db: AsyncSession = Depends(get_db),
     admin: AdminUser = Depends(get_current_admin),
 ):
@@ -97,6 +110,18 @@ async def do_import(
         raise HTTPException(status_code=400, detail={"errors": parse_errors})
 
     created, import_errors = await import_households(db, commune.id, df)
+
+    # Update data_imported_at and optional data_year on tariff params
+    params_result = await db.execute(
+        select(TariffParams).where(TariffParams.commune_id == commune.id)
+    )
+    params = params_result.scalar_one_or_none()
+    if params:
+        params.data_imported_at = datetime.utcnow()
+        if data_year is not None:
+            params.data_year = data_year
+        await db.commit()
+
     return ImportResult(created=created, errors=import_errors)
 
 

backend/app/schemas/schemas.py

@@ -56,6 +56,7 @@ class TariffParamsUpdate(BaseModel):
     recettes: float | None = None
     pmax: float | None = None
     vmax: float | None = None
+    data_year: int | None = None
 
 
 class TariffParamsOut(BaseModel):
@@ -64,6 +65,8 @@ class TariffParamsOut(BaseModel):
     recettes: float
     pmax: float
     vmax: float
+    data_year: int | None = None
+    data_imported_at: datetime | None = None
 
     model_config = {"from_attributes": True}
 
@@ -91,6 +94,8 @@ class HouseholdStats(BaseModel):
     avg_volume: float
     median_volume: float
     voted_count: int
+    data_year: int | None = None
+    data_imported_at: datetime | None = None
 
 
 class ImportPreview(BaseModel):