Initial commit: reorganized source tree

- backend/: 13 Maven modules (cw-elevator-application, cloudwalk-cloud, intelligent-cwoscomponent, ninca-crk, etc.)
- frontend/: 4 Vue projects (elevator-front, cwos-portal, alarm-front, front_acs) + decompiled + scripts
- scripts/: build, test-env, tools (Docker Compose, service templates, API parity)
- docs/: AGENTS.md, superpowers specs, architecture docs
- .gitignore: standard Java/Maven exclusions

Moved from legacy maven-*/ root layout to backend/ organized structure.

docs/sql/tenant_visitor_floor_policy_v2.sql

@@ -0,0 +1,26 @@
+-- 租户访客楼层策略：org_id 粒度修复
+-- 执行顺序：先 DDL → 数据迁移 → 发应用包
+-- 回滚：DROP INDEX uk_org_building, DROP COLUMN org_id, ADD UNIQUE KEY uk_biz_building (business_id, building_id)
+
+USE `cw-elevator-application`;
+
+-- 1. 新增 org_id 列
+ALTER TABLE tenant_visitor_floor_policy
+  ADD COLUMN org_id VARCHAR(32) NULL COMMENT '组织节点ID(cw_is_organization.ID)'
+  AFTER business_id;
+
+-- 2. 替换唯一约束（business_id → org_id）
+ALTER TABLE tenant_visitor_floor_policy
+  DROP INDEX uk_biz_building,
+  ADD UNIQUE KEY uk_org_building (org_id, building_id);
+
+-- 3. 标记 business_id 为废弃
+ALTER TABLE tenant_visitor_floor_policy
+  MODIFY COLUMN business_id VARCHAR(64) NULL COMMENT 'DEPRECATED: 已废弃，以 org_id 为准';
+
+-- 验证
+SELECT COLUMN_NAME, COLUMN_KEY, COLUMN_COMMENT
+FROM INFORMATION_SCHEMA.COLUMNS
+WHERE TABLE_SCHEMA = 'cw-elevator-application'
+  AND TABLE_NAME = 'tenant_visitor_floor_policy'
+ORDER BY ORDINAL_POSITION;