chore: update biome config with VCS and rule tweaks

Author: kangju2000

biome.json

@@ -1,5 +1,11 @@
 {
-  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "$schema": "./node_modules/@biomejs/biome/configuration_schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true,
+    "defaultBranch": "main"
+  },
   "organizeImports": {
     "enabled": true
   },
@@ -14,13 +20,16 @@
         "noEmptyTypeParameters": "error"
       },
       "suspicious": {
-        "noExplicitAny": "off",
+        "noExplicitAny": "warn",
         "noAssignInExpressions": "off",
         "noRedeclare": "off",
         "noImplicitAnyLet": "off"
       },
       "correctness": {
-        "noUnusedImports": "error"
+        "noUnusedImports": {
+          "level": "error",
+          "fix": "unsafe"
+        }
       },
       "style": {
         "useImportType": "error"