chore(v2): 从兴邦预审v2白名单抽取独立可运行基座

按 docs/v2/05-implementation-plan.md §1 候选迁移表与 claude_use/T00 白名单，
从 55e2cdb 抽取 224 个文件（2.48 MB）到独立目录 F:/mini-OpenClaw-v2。

- 排除：凭据(.env/server-deploy.conf/旧DELIVERY.md)、运行数据(xingbang_data 等
  4 个 SQLite)、依赖(venv/node_modules 符号链接)、归档(_backup*/test-evidence/
  ori_file)、Office 临时文件
- 目标目录独立 git 仓库，初始恢复点；Gitea 远程与分支待 OQ-06 Q2 定案
- 未部署、未启动服务、未调用模型

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

backend/fixtures/xingbang_demo/business_flow_schema.sql

@@ -0,0 +1,23 @@
+-- mini-openclaw 兴邦对公业务演示库：时间追踪扩展
+-- 主业务对象继续使用 assistant_objects 的版本化 JSON 合同；本表用于可统计的阶段事件。
+CREATE TABLE IF NOT EXISTS business_time_events (
+    id TEXT PRIMARY KEY,
+    project_id TEXT NOT NULL,
+    phase_code TEXT NOT NULL,
+    phase_name TEXT NOT NULL,
+    role TEXT NOT NULL CHECK (role IN ('manager', 'reviewer', 'admin', 'system')),
+    category TEXT NOT NULL CHECK (category IN ('active', 'queue', 'external_wait', 'system')),
+    status TEXT NOT NULL CHECK (status IN ('running', 'completed', 'cancelled')),
+    started_at TEXT NOT NULL,
+    ended_at TEXT,
+    actor_id TEXT NOT NULL,
+    source_type TEXT NOT NULL,
+    source_id TEXT NOT NULL,
+    detail TEXT NOT NULL DEFAULT '{}'
+);
+
+CREATE INDEX IF NOT EXISTS business_time_project_started
+    ON business_time_events(project_id, started_at);
+
+CREATE INDEX IF NOT EXISTS business_time_role_phase
+    ON business_time_events(role, phase_code, started_at);