Add drag-drop and keyboard link ordering

backend/main.py

@@ -198,6 +198,15 @@ class RestoreIn(BaseModel):
     confirm: bool = False
 
 
+class ReorderItem(BaseModel):
+    id: int
+    sort_order: int
+
+
+class ReorderIn(BaseModel):
+    items: list[ReorderItem]
+
+
 def utc_now_iso() -> str:
     return datetime.utcnow().isoformat()
 
@@ -637,6 +646,32 @@ def update_link(
     return {"ok": True}
 
 
+@app.patch("/api/links/order")
+def reorder_links(request: Request, inp: ReorderIn):
+    require_admin(request)
+    require_csrf(request)
+    if not inp.items:
+        raise HTTPException(422, "items must not be empty")
+    seen: set[int] = set()
+    with db() as c:
+        c.begin()
+        try:
+            with c.cursor() as cur:
+                for item in inp.items:
+                    if item.id in seen:
+                        raise HTTPException(422, "duplicate link id in reorder payload")
+                    seen.add(item.id)
+                    cur.execute("update links set sort_order=%s,updated_at=%s where id=%s", (item.sort_order, utc_now_db(), item.id))
+                    if cur.rowcount == 0:
+                        raise HTTPException(404, f"link {item.id} not found")
+            c.commit()
+        except Exception:
+            c.rollback()
+            raise
+    log_event(request, "links.reorder", count=len(inp.items))
+    return {"ok": True}
+
+
 @app.get("/api/admin/backup")
 def backup(request: Request):
     require_admin(request)