feat: add operational sync controls

app/db/repositories.py

@@ -1,3 +1,4 @@
+from dataclasses import dataclass
 from datetime import datetime
 
 from sqlalchemy import and_, or_, select
@@ -7,6 +8,18 @@ from sqlalchemy.orm import Session
 from app.db.models import Activity, ActivityStatus, SyncRun, SyncRunStatus, SyncUser, utcnow
 
 
+@dataclass(frozen=True)
+class UserDashboardRow:
+    id: int
+    name: str
+    enabled: bool
+    health_state: str
+    action_reason: str | None
+    last_sync_at: datetime | None
+    last_activity_name: str | None
+    last_activity_status: str | None
+
+
 class UserRepository:
     def __init__(self, session: Session) -> None:
         self.session = session
@@ -32,6 +45,28 @@ class UserRepository:
         self.session.commit()
         return user
 
+    def dashboard_rows(self) -> list[UserDashboardRow]:
+        users = self.list_all()
+        rows = []
+        for user in users:
+            last_run = self.session.scalar(
+                select(SyncRun).where(SyncRun.user_id == user.id).order_by(SyncRun.started_at.desc()).limit(1)
+            )
+            last_activity = self.session.scalar(
+                select(Activity).where(Activity.user_id == user.id).order_by(Activity.created_at.desc()).limit(1)
+            )
+            rows.append(UserDashboardRow(
+                id=user.id,
+                name=user.name,
+                enabled=user.enabled,
+                health_state=user.health_state.value,
+                action_reason=user.action_reason,
+                last_sync_at=last_run.finished_at if last_run else None,
+                last_activity_name=last_activity.activity_name if last_activity else None,
+                last_activity_status=last_activity.status.value if last_activity else None,
+            ))
+        return rows
+
 
 class ActivityRepository:
     def __init__(self, session: Session) -> None: