release: v1.0.117 沉淀多数据源契约（SQLite 默认 + 可选 MySQL 云库）

新增 DATA_SOURCES.md、data-sources 示例与双后端 connection 骨架；CLI 与宿主 UI 可读写同一库。要求匠厂 Host ≥ 6.9.28。

Co-authored-by: Cursor <cursoragent@cursor.com>

assets/examples/data-sources.mysql.example.json

@@ -0,0 +1,11 @@
+{
+  "version": 1,
+  "sources": [
+    {
+      "id": "primary",
+      "kind": "mysql",
+      "displayName": "业务云库",
+      "connectionEnv": "MYSQL_DSN"
+    }
+  ]
+}