Add core database support and enhance documentation

- Introduced `MYSQL_CORE_DATABASE` in `.env.example` and `settings.py` for core database configuration.
- Added `CoreReadOnlyRepository` for read-only access to the `jinrong_core` database.
- Updated `AGENTS.md`, `README.md`, and various documentation files to reflect new agent onboarding processes and project structure.
- Revised requirements in `requirements.txt` to include `langgraph` and `langchain-core`.
- Enhanced `FLOW.md` with local bootstrap instructions for setting up the core simulation environment.
- Added new scripts for database creation and seeding for the core simulation library.
- Improved overall documentation for clarity on project architecture and memory management.
- Updated `TODO.md` to reflect current development priorities and tasks.

scripts/core/02-seed-base.sql

@@ -0,0 +1,70 @@
+USE jinrong_core;
+
+-- 客户风险等级 C1~C5
+INSERT INTO core_risk_grade (code, grade_type, display_name, sort_order) VALUES
+('C1', 'customer', '保守型 C1', 1),
+('C2', 'customer', '稳健型 C2', 2),
+('C3', 'customer', '平衡型 C3', 3),
+('C4', 'customer', '成长型 C4', 4),
+('C5', 'customer', '进取型 C5', 5);
+
+-- 产品风险等级 R1~R5
+INSERT INTO core_risk_grade (code, grade_type, display_name, sort_order) VALUES
+('R1', 'product', '低风险 R1', 1),
+('R2', 'product', '中低风险 R2', 2),
+('R3', 'product', '中风险 R3', 3),
+('R4', 'product', '中高风险 R4', 4),
+('R5', 'product', '高风险 R5', 5);
+
+INSERT INTO core_industry (industry_code, industry_name) VALUES
+('IND-BOND', '债券固收'),
+('IND-MIX', '混合平衡'),
+('IND-TECH', '科技成长'),
+('IND-CONS', '消费'),
+('IND-MED', '医药健康'),
+('IND-INDEX', '宽基指数'),
+('IND-MONEY', '货币现金');
+
+-- ========== 内部员工 · RBAC 种子 ==========
+-- 5 理财代理人
+INSERT INTO core_staff (staff_id, display_name, staff_type, roles) VALUES
+('STAFF-10086', '张理财', 'advisor', '["advisor"]'),
+('STAFF-10087', '李顾问', 'advisor', '["advisor"]'),
+('STAFF-10088', '王经理', 'advisor', '["advisor"]'),
+('STAFF-10089', '赵专员', 'advisor', '["advisor"]'),
+('STAFF-10090', '刘助理', 'advisor', '["advisor"]');
+
+-- 2 数据分析员
+INSERT INTO core_staff (staff_id, display_name, staff_type, roles) VALUES
+('STAFF-20001', '陈分析', 'analyst', '["analyst"]'),
+('STAFF-20002', '周数据', 'analyst', '["analyst"]');
+
+-- 2 风控专员
+INSERT INTO core_staff (staff_id, display_name, staff_type, roles) VALUES
+('STAFF-30001', '吴风控', 'risk_officer', '["risk_officer"]'),
+('STAFF-30002', '郑监测', 'risk_officer', '["risk_officer"]');
+
+-- 2 合规专员（兼 advisor 审计台场景用 compliance 单角色）
+INSERT INTO core_staff (staff_id, display_name, staff_type, roles) VALUES
+('STAFF-40001', '孙合规', 'compliance', '["compliance"]'),
+('STAFF-40002', '钱监察', 'compliance', '["compliance"]');
+
+-- 1 运营 + 1 双角色（代理人+合规，测权限并集与归属最窄）
+INSERT INTO core_staff (staff_id, display_name, staff_type, roles) VALUES
+('STAFF-50001', '冯运营', 'ops', '["ops"]'),
+('STAFF-10091', '双角色顾问', 'advisor', '["advisor", "compliance"]');
+
+-- ========== 产品 12 只 ==========
+INSERT INTO core_product (product_id, product_name, product_type, min_risk_code, industry_code, fee_rate) VALUES
+('PROD-110022', '稳健债基 A', 'bond', 'R1', 'IND-BOND', 0.0030),
+('PROD-110023', '信用债精选', 'bond', 'R2', 'IND-BOND', 0.0040),
+('PROD-005827', '平衡混合一号', 'mixed', 'R3', 'IND-MIX', 0.0150),
+('PROD-005828', '稳健增利混合', 'mixed', 'R2', 'IND-MIX', 0.0120),
+('PROD-161725', '科技成长主题', 'stock', 'R4', 'IND-TECH', 0.0150),
+('PROD-161726', '消费升级主题', 'stock', 'R4', 'IND-CONS', 0.0150),
+('PROD-003095', '医药健康精选', 'stock', 'R4', 'IND-MED', 0.0120),
+('PROD-510300', '沪深300指数', 'index', 'R3', 'IND-INDEX', 0.0050),
+('PROD-510500', '中证500指数', 'index', 'R4', 'IND-INDEX', 0.0060),
+('PROD-XYZ999', '进取成长五号', 'stock', 'R5', 'IND-TECH', 0.0180),
+('PROD-000001', '现金宝货币', 'money', 'R1', 'IND-MONEY', 0.0010),
+('PROD-000002', '同业存单基金', 'bond', 'R1', 'IND-BOND', 0.0020);