feat(web): show cumulative fan range and limit recent records

reaction_board/web/queries.py

@@ -894,9 +894,17 @@ class DashboardQueries:
 
     # ------------------------------------------------------------ fans
 
-    def fans(self, mid: int | None = None, *, days: int = 90) -> dict[str, Any]:
+    def fans(
+        self,
+        mid: int | None = None,
+        *,
+        days: int = 90,
+        recent_days: int = 14,
+    ) -> dict[str, Any]:
         if days < 1:
             raise ValueError("days 必须大于 0")
+        if recent_days < 1 or recent_days > 3650:
+            raise ValueError("recent_days 必须在 1~3650 之间")
 
         def run(conn: sqlite3.Connection) -> dict[str, Any]:
             cfg = self.config_store.get()
@@ -916,7 +924,8 @@ class DashboardQueries:
                 return {
                     "mid": None, "name": None, "available": False,
                     "options": options, "dates": [], "series": [],
-                    "points": [], "days": days,
+                    "points": [], "recent_points": [], "days": days,
+                    "recent_days": recent_days,
                 }
             rows = [
                 dict(row) for row in conn.execute(
@@ -933,10 +942,16 @@ class DashboardQueries:
                     "dates": [],
                     "series": [],
                     "points": [],
+                    "recent_points": [],
                     "days": days,
+                    "recent_days": recent_days,
                 }
             latest = max(str(row["stat_date"]) for row in rows if int(row["ok"]) == 1) if any(int(row["ok"]) == 1 for row in rows) else str(rows[-1]["stat_date"])
             first_date = str(rows[0]["stat_date"])
+            recent_start = _date_minus(latest, recent_days - 1)
+            recent_points = [
+                row for row in rows if str(row["stat_date"]) >= recent_start
+            ]
             start = max(_date_minus(latest, days - 1), first_date)
             dates = _date_range(start, latest)
             by_date = {str(row["stat_date"]): row for row in rows}
@@ -973,6 +988,8 @@ class DashboardQueries:
                 "dates": dates,
                 "series": series,
                 "points": rows,
+                "recent_points": recent_points,
+                "recent_days": recent_days,
                 "stat_date": current["stat_date"],
                 "follower": current.get("follower"),
                 "following": current.get("following"),