feat: 足球 LLM 预测服务初始提交

Profeto — 给 LLM 提供数据,让 LLM 预测足球比分。

核心模块:
- FastAPI 后端 + PostgreSQL (SQLAlchemy async)
- 多 Agent LLM 预测 (5 专家 + 终裁)
- 数据采集 (bzzoiro / understat / injuries)
- React 前端 (Vite + Tailwind)

包含:
- 数据源抽象 (DataSource 协议 + 注册表)
- Alembic 数据库迁移
- Prompt 模板 (单/多 Agent)
- 核心路径单元测试

src/data/config.py

@@ -0,0 +1,46 @@
+"""数据源配置常量(联赛映射)。"""
+from __future__ import annotations
+
+# fdco 风格代码 → bzzoiro league_id
+BZZOIRO_LEAGUE_IDS: dict[str, int] = {
+    "E0": 1,   # Premier League
+    "SP1": 3,  # La Liga
+    "D1": 5,   # Bundesliga
+    "I1": 4,  # Serie A
+    "F1": 6,  # Ligue 1
+    "CL": 7,  # Champions League
+    "EL": 8,  # Europa League
+}
+
+# fdco 代码 → understat 联赛代码
+FDCO_TO_UNDERSTAT: dict[str, str] = {
+    "E0": "EPL",
+    "SP1": "La_liga",
+    "D1": "Bundesliga",
+    "I1": "Serie_A",
+    "F1": "Ligue_1",
+}
+
+# fdco 代码 → 显示名
+LEAGUE_NAMES: dict[str, str] = {
+    "E0": "Premier League",
+    "SP1": "La Liga",
+    "D1": "Bundesliga",
+    "I1": "Serie A",
+    "F1": "Ligue 1",
+    "CL": "Champions League",
+    "EL": "Europa League",
+}
+
+# fdco 代码 → 国家
+LEAGUE_COUNTRIES: dict[str, str] = {
+    "E0": "England",
+    "SP1": "Spain",
+    "D1": "Germany",
+    "I1": "Italy",
+    "F1": "France",
+    "CL": "Europe",
+    "EL": "Europe",
+}
+
+REQUEST_INTERVAL = 1.2  # bzzoiro 限速(秒)