fix: move orchestrate endpoints out of admin router

- Create backend/app/api/orchestrate.py — new router for workflow steps
  (scrape, generate, email, reminder, deadline, finalize) without admin auth.
- Remove orchestrate endpoints from backend/app/api/admin.py.
- Register orchestrate router in main.py under /api/orchestrate.
- Update frontend api/index.ts to call /orchestrate/{step} instead of
  /admin/orchestrate/{step}.

This lets family members trigger vote emails without an admin bearer token.

backend/app/api/admin.py

@@ -6,9 +6,6 @@ from app.security import require_admin
 from app.services.scraper_service import ScraperService, enqueue_scrape
 from typing import List, Optional
 from datetime import datetime, timedelta
-from datetime import date as DateType
-from app.services.orchestrator import run_step, run_week
-from app.models import WeeklyRun
 
 router = APIRouter(dependencies=[Depends(require_admin)])
 
@@ -182,64 +179,4 @@ def get_stats(db: Session = Depends(get_db)):
         "recipes": recipe_count,
         "ingredients": ingredient_count,
         "meal_plans": plan_count
-    }
-
-
-_VALID_STEPS = {"scrape", "generate", "email", "reminder", "deadline", "finalize"}
-
-
-@router.get("/orchestrate/status")
-def orchestrate_status(limit: int = 10, db: Session = Depends(get_db)):
-    runs = (
-        db.query(WeeklyRun)
-        .order_by(WeeklyRun.week_start_date.desc())
-        .limit(limit)
-        .all()
-    )
-    return {
-        "runs": [
-            {
-                "id": str(r.id),
-                "family_id": str(r.family_id),
-                "week_start_date": r.week_start_date.isoformat(),
-                "status": r.status,
-                "scraped_at": r.scraped_at.isoformat() if r.scraped_at else None,
-                "generated_at": r.generated_at.isoformat() if r.generated_at else None,
-                "emailed_at": r.emailed_at.isoformat() if r.emailed_at else None,
-                "deadline_passed_at": r.deadline_passed_at.isoformat()
-                if r.deadline_passed_at
-                else None,
-                "finalized_at": r.finalized_at.isoformat() if r.finalized_at else None,
-                "used_stale_data": r.used_stale_data,
-                "error_step": r.error_step,
-                "error_message": r.error_message,
-            }
-            for r in runs
-        ]
-    }
-
-
-@router.post("/orchestrate/run-week", status_code=202)
-def orchestrate_run_week(
-    background_tasks: BackgroundTasks,
-    week_start: Optional[str] = None,
-):
-    week = DateType.fromisoformat(week_start) if week_start else None
-    background_tasks.add_task(run_week, week)
-    return {"status": "queued", "week_start": str(week or "current")}
-
-
-@router.post("/orchestrate/{step}", status_code=202)
-def orchestrate_step(
-    step: str,
-    background_tasks: BackgroundTasks,
-    week_start: Optional[str] = None,
-):
-    if step not in _VALID_STEPS:
-        raise HTTPException(
-            status_code=400,
-            detail=f"Unknown step {step!r}. Valid: {sorted(_VALID_STEPS)}",
-        )
-    week = DateType.fromisoformat(week_start) if week_start else None
-    background_tasks.add_task(run_step, step, week)
-    return {"status": "queued", "step": step, "week_start": str(week or "current")}
+    }