定时下载(APScheduler) + 跑比对纯离线 + 偏移拆 expected/actual + 报告下载

定时下载：
- state_store：site_config 加 schedule_enabled/schedule_time（旧库迁移）+ set_schedule/get_all_config
- server：APScheduler BackgroundScheduler，启动按配置注册各站 cron job、改配置重排；job 投 undelivered 任务到队列（错过跳过）；/config 扩展 schedule
- runtime：("__compare__","compare") 改纯离线 expected_undelivered.main()（不下载）
- requirements：加 apscheduler

偏移拆分 + 报告下载：
- state_store：date_offset 拆 expected_offset/actual_offset（迁移）+ get_offset(site,kind)/set_offset(site,kind,n)
- 4 站 actual impl 改读 actual 偏移（expected 走默认 kind）
- server：/config 用 expected_offset/actual_offset；新增 GET /report（服务 output/应到未到数据.xlsx）
- paths：加 OUTPUT_DIR

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

state_store.py

@@ -69,11 +69,33 @@ def init_db():
             """)
         conn.execute("""
             CREATE TABLE IF NOT EXISTS site_config (
-                site        TEXT PRIMARY KEY,
-                date_offset INTEGER NOT NULL DEFAULT 0,
-                updated_at  TEXT
+                site             TEXT PRIMARY KEY,
+                expected_offset  INTEGER NOT NULL DEFAULT 0,
+                actual_offset    INTEGER NOT NULL DEFAULT 0,
+                schedule_enabled INTEGER NOT NULL DEFAULT 0,
+                schedule_time    TEXT NOT NULL DEFAULT '',
+                updated_at       TEXT
             )
             """)
+        # 旧库迁移：补 schedule 两列 + expected/actual 偏移（新库已含；重复添加抛错忽略）
+        for _col, _typedef in [
+            ("schedule_enabled", "INTEGER NOT NULL DEFAULT 0"),
+            ("schedule_time", "TEXT NOT NULL DEFAULT ''"),
+            ("expected_offset", "INTEGER NOT NULL DEFAULT 0"),
+            ("actual_offset", "INTEGER NOT NULL DEFAULT 0"),
+        ]:
+            try:
+                conn.execute(f"ALTER TABLE site_config ADD COLUMN {_col} {_typedef}")
+            except sqlite3.OperationalError:
+                pass
+        # 旧库若有 date_offset 列，把值搬到 expected/actual（一次性；新库无此列则跳过）
+        try:
+            conn.execute(
+                "UPDATE site_config SET expected_offset=date_offset, actual_offset=date_offset "
+                "WHERE expected_offset=0 AND date_offset IS NOT NULL AND date_offset>0"
+            )
+        except sqlite3.OperationalError:
+            pass
         conn.commit()
 
 
@@ -197,38 +219,67 @@ def get_all_status():
 MAX_DATE_OFFSET = 30  # 0=今天，最大回溯 30 天
 
 
-def get_offset(site):
-    """读取单站下载日期偏移（0=今天，1=昨天…）；未配置返回 0。"""
+def get_offset(site, kind="expected"):
+    """读取单站下载日期偏移（kind: 'expected'/'actual'；0=今天，1=昨天…）；未配置返回 0。"""
+    col = "expected_offset" if kind == "expected" else "actual_offset"
     if not os.path.exists(STATE_DB_PATH):
         return 0
     with sqlite3.connect(STATE_DB_PATH) as conn:
         row = conn.execute(
-            "SELECT date_offset FROM site_config WHERE site=?", (site,)
+            f"SELECT {col} FROM site_config WHERE site=?", (site,)
         ).fetchone()
     return int(row[0]) if row else 0
 
 
-def set_offset(site, offset):
-    """设置单站下载日期偏移，钳制到 [0, MAX_DATE_OFFSET]，返回实际写入值。"""
+def set_offset(site, kind, offset):
+    """设置单站下载日期偏移（kind: 'expected'/'actual'），钳制到 [0, MAX_DATE_OFFSET]。"""
+    col = "expected_offset" if kind == "expected" else "actual_offset"
     offset = max(0, min(MAX_DATE_OFFSET, int(offset)))
     with sqlite3.connect(STATE_DB_PATH) as conn:
         conn.execute(
-            "INSERT INTO site_config (site, date_offset, updated_at) VALUES (?, ?, ?) "
-            "ON CONFLICT(site) DO UPDATE SET "
-            "date_offset=excluded.date_offset, updated_at=excluded.updated_at",
+            f"INSERT INTO site_config (site, {col}, updated_at) VALUES (?, ?, ?) "
+            f"ON CONFLICT(site) DO UPDATE SET {col}=excluded.{col}, "
+            f"updated_at=excluded.updated_at",
             (site, offset, _now()),
         )
         conn.commit()
     return offset
 
 
-def get_all_offsets():
-    """返回 {site: date_offset}；未配置站点不在结果中（调用方按 0 兜底）。"""
+def set_schedule(site, enabled, time_str):
+    """设置单站每日定时下载（enabled: bool；time_str: 'HH:MM' 或 ''）。"""
+    enabled_int = 1 if enabled else 0
+    with sqlite3.connect(STATE_DB_PATH) as conn:
+        conn.execute(
+            "INSERT INTO site_config (site, schedule_enabled, schedule_time, updated_at) "
+            "VALUES (?, ?, ?, ?) "
+            "ON CONFLICT(site) DO UPDATE SET "
+            "schedule_enabled=excluded.schedule_enabled, "
+            "schedule_time=excluded.schedule_time, updated_at=excluded.updated_at",
+            (site, enabled_int, time_str or "", _now()),
+        )
+        conn.commit()
+    return bool(enabled_int), (time_str or "")
+
+
+def get_all_config():
+    """返回 {site: {expected_offset, actual_offset, schedule_enabled, schedule_time}}。"""
     if not os.path.exists(STATE_DB_PATH):
         return {}
     with sqlite3.connect(STATE_DB_PATH) as conn:
-        rows = conn.execute("SELECT site, date_offset FROM site_config").fetchall()
-    return {r[0]: int(r[1]) for r in rows}
+        rows = conn.execute(
+            "SELECT site, expected_offset, actual_offset, schedule_enabled, schedule_time "
+            "FROM site_config"
+        ).fetchall()
+    return {
+        r[0]: {
+            "expected_offset": int(r[1]),
+            "actual_offset": int(r[2]),
+            "schedule_enabled": bool(r[3]),
+            "schedule_time": r[4] or "",
+        }
+        for r in rows
+    }
 
 
 # ============================ 任务历史 ============================