chore: 更新 biome.json 配置

- 修改 schema 路径为本地配置文件
- 调整文件包含规则，新增 src/** 目录
- 移除原有的文件忽略配置

Author: cklwblove

biome.json

@@ -1,10 +1,14 @@
 {
-  "$schema": "https://biomejs.dev/schemas/1.8.3/schema.json",
-  "files": {
-    "ignore": ["playground/**"]
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "assist": {
+    "actions": {
+      "source": {
+        "organizeImports": "on"
+      }
+    }
   },
-  "organizeImports": {
-    "enabled": true
+  "files": {
+    "includes": ["src/**"]
   },
   "vcs": {
     "enabled": true,