refactor: web_server 模块化拆分（web/ 蓝图包 auth/monitor/tasks/admin/tools/devices/apks/tailscale + context/common，web_server 1796→193 行仅留装配与启动）+ 大屏优化（网格 5s 轮询、弹窗独占缩略图、流支持 q/fps）+ 三修复（MIUI 屏幕状态检测改 dumpsys power、补 ADB_PATH 导入修复一键亮屏、renderGrid 增量渲染不重载缩略图）

web/admin_api.py

@@ -0,0 +1,101 @@
+"""管理域 API：用户管理/日志查看。"""
+import os
+import time
+
+from flask import Blueprint, jsonify, request
+from flask_login import current_user
+from flask import session
+
+from core.logger import _LOG_DIR, _MODULE_FILES
+from core.models import db, User
+from web import context
+from web.auth import (admin_required, perm_required, _validate_perms,
+                             PERM_LOGS)
+
+bp = Blueprint("admin", __name__)
+
+@bp.route("/api/users")
+@admin_required
+def api_users_list():
+    users = [{"id": u.id, "username": u.username,
+              "is_admin": u.is_admin, "perms": u.get_perms()} for u in User.query.all()]
+    return jsonify({"ok": True, "users": users})
+
+@bp.route("/api/users", methods=["POST"])
+@admin_required
+def api_users_create():
+    data = request.json or {}
+    username = (data.get("username") or "").strip()
+    password = data.get("password", "")
+    if not username or not password:
+        return jsonify({"ok": False, "error": "用户名和密码不能为空"}), 400
+    if User.query.filter_by(username=username).first():
+        return jsonify({"ok": False, "error": "用户名已存在"}), 400
+    # 默认普通用户（最小权限）；管理员由 is_admin 决定，权限位照常保存（降级后生效）
+    u = User(username=username, is_admin=bool(data.get("is_admin", False)))
+    u.set_perms(_validate_perms(data.get("perms") or []))
+    u.set_password(password)
+    db.session.add(u)
+    db.session.commit()
+    _log.info(f"创建用户 {username} (admin={u.is_admin}, perms={u.get_perms()})")
+    return jsonify({"ok": True, "msg": "用户已创建"})
+
+@bp.route("/api/users/<int:uid>", methods=["PUT"])
+@admin_required
+def api_users_update(uid):
+    u = User.query.get(uid)
+    if not u:
+        return jsonify({"ok": False, "error": "用户不存在"}), 404
+    data = request.json or {}
+    if "password" in data and data["password"]:
+        u.set_password(data["password"])
+    if "is_admin" in data:
+        new_admin = bool(data["is_admin"])
+        if u.is_admin and not new_admin and User.query.filter_by(is_admin=True).count() <= 1:
+            return jsonify({"ok": False, "error": "不能取消最后一个管理员"}), 400
+        u.is_admin = new_admin
+    if "perms" in data:
+        u.set_perms(_validate_perms(data["perms"]))
+    db.session.commit()
+    _log.info(f"更新用户 {u.username} (admin={u.is_admin}, perms={u.get_perms()})")
+    return jsonify({"ok": True, "msg": "用户已更新"})
+
+@bp.route("/api/users/<int:uid>", methods=["DELETE"])
+@admin_required
+def api_users_delete(uid):
+    u = User.query.get(uid)
+    if not u:
+        return jsonify({"ok": False, "error": "用户不存在"}), 404
+    if u.username == "admin":
+        return jsonify({"ok": False, "error": "不能删除默认管理员"}), 400
+    if u.id == current_user.id:
+        return jsonify({"ok": False, "error": "不能删除当前登录用户"}), 400
+    if u.is_admin and User.query.filter_by(is_admin=True).count() <= 1:
+        return jsonify({"ok": False, "error": "不能删除最后一个管理员"}), 400
+    db.session.delete(u)
+    db.session.commit()
+    _log.info(f"删除用户 {u.username}")
+    return jsonify({"ok": True, "msg": "用户已删除"})
+
+
+# ================== API：日志查看 ==================
+
+@bp.route("/api/logs")
+@perm_required(PERM_LOGS)
+def api_logs():
+    files = list(_MODULE_FILES.values())
+    current = request.args.get("file", "core.log")
+    lines = int(request.args.get("lines", 300))
+    content = ""
+    path = os.path.join(_LOG_DIR, current)
+    if os.path.exists(path):
+        try:
+            with open(path, encoding="utf-8") as f:
+                content = "".join(f.readlines()[-lines:])
+        except Exception as e:
+            content = f"读取失败: {e}"
+    return jsonify({"ok": True, "content": content, "file": current, "files": files})
+
+
+# ================== API：运行控制 ==================
+