Revert "feat(aiot): 截图持久化 + ROI 显示修复 + 告警图片代理"

This reverts commit 547dfdd5f4.

sql/wvp_ai_camera_snapshot.sql

@@ -1,8 +0,0 @@
--- Screenshot persistence table for storing COS object keys
--- Run this SQL on the WVP database before deploying the new version
-
-CREATE TABLE IF NOT EXISTS wvp_ai_camera_snapshot (
-    camera_code  VARCHAR(64) PRIMARY KEY,
-    cos_key      VARCHAR(512) NOT NULL COMMENT 'COS 对象键',
-    updated_at   DATETIME DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
-) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;