阶段0：登录态心跳 + 状态持久化（重构地基）

- 新增 state_store.py：SQLite 状态存储（site_status 表：登录态/数据态/时间戳），
  UPSERT 保留字段，重启不丢
- paths.py：加 STATE_DB_PATH（state/state.db）
- main_router：提取 probe_site_login / probe_data_file；菜单循环改为
  input 后台线程 + 主线程心跳轮询（满足 Playwright sync 线程安全）；
  每 30s 探测各站登录态 + 数据文件写库，登录态变化时提示；新增菜单 [12] 站点状态盘
- .gitignore：忽略 state/

为后续 FastAPI 化与 Web 前端提供状态地基。

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

state_store.py

@@ -0,0 +1,136 @@
+# state_store.py
+# 阶段0：站点状态持久化（SQLite）。记录各站登录态 + 应到/实到数据文件生成时间，
+# 供后台心跳刷新、菜单状态盘展示，以及未来 FastAPI / Web 前端读取。
+# 重启不丢——程序重启后状态从本库恢复（登录态会随心跳重新探测校正）。
+#
+# 设计：纯 Python（sqlite3 标准库，无新依赖），每次读写开短连接，主线程使用。
+
+import os
+import sqlite3
+from datetime import datetime
+
+from paths import STATE_DB_PATH
+
+# 登录态枚举
+LOGIN_UNKNOWN = "unknown"  # 尚未探测过
+LOGIN_IN = "logged_in"
+LOGIN_OUT = "logged_out"
+
+
+def _now():
+    """本地时间的字符串（到秒），用于时间戳列。"""
+    return datetime.now().strftime("%Y-%m-%d %H:%M:%S")
+
+
+def init_db():
+    """建库建表（幂等）。确保 state 目录存在。"""
+    os.makedirs(os.path.dirname(STATE_DB_PATH), exist_ok=True)
+    with sqlite3.connect(STATE_DB_PATH) as conn:
+        conn.execute("""
+            CREATE TABLE IF NOT EXISTS site_status (
+                site                  TEXT PRIMARY KEY,
+                login_state           TEXT,
+                login_checked_at      TEXT,
+                expected_ready        INTEGER,
+                expected_generated_at TEXT,
+                actual_ready          INTEGER,
+                actual_generated_at   TEXT,
+                updated_at            TEXT
+            )
+            """)
+        conn.commit()
+
+
+def _upsert(conn, site, **fields):
+    """更新（或插入）单站：保留未传字段，刷新 updated_at。"""
+    row = conn.execute(
+        "SELECT login_state, login_checked_at, expected_ready, expected_generated_at, "
+        "actual_ready, actual_generated_at FROM site_status WHERE site = ?",
+        (site,),
+    ).fetchone()
+    cur = {
+        "login_state": LOGIN_UNKNOWN,
+        "login_checked_at": "",
+        "expected_ready": 0,
+        "expected_generated_at": "",
+        "actual_ready": 0,
+        "actual_generated_at": "",
+    }
+    if row:
+        (
+            cur["login_state"],
+            cur["login_checked_at"],
+            cur["expected_ready"],
+            cur["expected_generated_at"],
+            cur["actual_ready"],
+            cur["actual_generated_at"],
+        ) = row
+    cur.update(fields)
+    cur["updated_at"] = _now()
+
+    values = (
+        site,
+        cur["login_state"],
+        cur["login_checked_at"],
+        cur["expected_ready"],
+        cur["expected_generated_at"],
+        cur["actual_ready"],
+        cur["actual_generated_at"],
+        cur["updated_at"],
+    )
+    if row:
+        conn.execute(
+            "UPDATE site_status SET login_state=?, login_checked_at=?, expected_ready=?, "
+            "expected_generated_at=?, actual_ready=?, actual_generated_at=?, updated_at=? "
+            "WHERE site=?",
+            values[1:] + (site,),
+        )
+    else:
+        conn.execute(
+            "INSERT INTO site_status (site, login_state, login_checked_at, expected_ready, "
+            "expected_generated_at, actual_ready, actual_generated_at, updated_at) "
+            "VALUES (?, ?, ?, ?, ?, ?, ?, ?)",
+            values,
+        )
+    conn.commit()
+
+
+def set_login_state(site, logged_in):
+    """更新单站登录态。logged_in: bool。"""
+    state = LOGIN_IN if logged_in else LOGIN_OUT
+    with sqlite3.connect(STATE_DB_PATH) as conn:
+        _upsert(conn, site, login_state=state, login_checked_at=_now())
+
+
+def set_data_state(site, kind, ready, generated_at):
+    """更新单站数据态。kind: 'expected'/'actual'；ready: bool；generated_at: str 或 ''。"""
+    key_ready = "expected_ready" if kind == "expected" else "actual_ready"
+    key_at = "expected_generated_at" if kind == "expected" else "actual_generated_at"
+    with sqlite3.connect(STATE_DB_PATH) as conn:
+        _upsert(
+            conn, site, **{key_ready: 1 if ready else 0, key_at: generated_at or ""}
+        )
+
+
+def get_all_status():
+    """返回 {site: {各字段}}；库不存在则返回 {}。"""
+    if not os.path.exists(STATE_DB_PATH):
+        return {}
+    with sqlite3.connect(STATE_DB_PATH) as conn:
+        rows = conn.execute(
+            "SELECT site, login_state, login_checked_at, expected_ready, "
+            "expected_generated_at, actual_ready, actual_generated_at, updated_at "
+            "FROM site_status"
+        ).fetchall()
+    return {
+        r[0]: {
+            "login_state": r[1],
+            "login_checked_at": r[2],
+            "expected_ready": bool(r[3]),
+            "expected_generated_at": r[4],
+            "actual_ready": bool(r[5]),
+            "actual_generated_at": r[6],
+            "updated_at": r[7],
+        }
+        for r in rows
+    }