feat(auth): 账号唯一性+清理多余账号 —— 迁移0011加phone/微信openid非空部分唯一索引

- users.phone/wx_openid/wx_mini_openid/wx_unionid 各自唯一(非空部分唯一索引)
- 创建账号必生成ID(create用new_id)；find_by_phone/find_by_wx 唯一校验
- cleanup_accounts.py 清理旧accounts已被users接管的重复账号；seed不再重复造账号、迁移后删旧行

scripts/db/seed.py

@@ -24,17 +24,17 @@ log = logging.getLogger("db.seed")
 
 
 def _seed_training() -> None:
-    """培训种子（唯一总库 app.db）：超管账号 + 排期 + 在线课程（幂等）。"""
+    """培训种子（唯一总库 app.db）：排期 + 在线课程（幂等）。
+
+    不再向旧 ``accounts`` 表种子账号 —— 平台规范账号已由 platform_seed 写入
+    ``users``（如 u_demo_01/pine），旧 accounts 为「多余账号仓」已被清理
+    （见 scripts/db/cleanup_accounts.py），此处不再重复造账号。
+    """
     import sqlite3
-    import json
     from app.training import db as tdb
     conn = sqlite3.connect(tdb.DB_PATH)
     conn.row_factory = sqlite3.Row
     try:
-        if conn.execute("SELECT COUNT(*) AS c FROM accounts").fetchone()["c"] == 0:
-            from app.training.auth import hash_password
-            conn.execute("INSERT INTO accounts (id,username,password,name,identities,created_at) VALUES (?,?,?,?,?,?)",
-                         ("U-PINE", "pine", hash_password("123456"), "Pine", json.dumps(["admin"]), tdb.now_iso()))
         if conn.execute("SELECT COUNT(*) AS c FROM events").fetchone()["c"] == 0:
             for e in tdb.SEED_EVENTS:
                 conn.execute("INSERT INTO events (id,type,mode,title,subtitle,desc,location,host,image,link,start_at,duration_min,capacity,status) VALUES (:id,:type,:mode,:title,:subtitle,:desc,:location,:host,:image,:link,:start_at,:duration_min,:capacity,:status)", e)
@@ -87,8 +87,11 @@ async def _migrate_accounts_to_users(db) -> None:
                 )
                 created += 1
             await _ensure_opc_identity(db, user["id"])
+            # 迁移即接管：删掉旧 accounts 行，避免同一逻辑账号落在两套表（多余账号）。
+            conn.execute("DELETE FROM accounts WHERE id=?", (row["id"],))
             migrated += 1
-        log.info("accounts→users 迁移完成：共 %s 条，新建 %s 条", migrated, created)
+        conn.commit()
+        log.info("accounts→users 迁移完成：共 %s 条，新建 %s 条（旧 accounts 行已清理）", migrated, created)
     finally:
         conn.close()