chore(deps): migrate from eslint to biome and apply 2spaces indent

Author: yoshinorin

.eslintrc.js

@@ -0,0 +1,96 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": { "enabled": false, "clientKind": "git", "useIgnoreFile": false },
+  "files": { "ignoreUnknown": false, "ignore": ["*.json", "**/node_modules/**"] },
+  "formatter": { "enabled": true, "indentStyle": "space" },
+  "organizeImports": { "enabled": true },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": false,
+      "complexity": {
+        "noBannedTypes": "error",
+        "noExtraBooleanCast": "error",
+        "noMultipleSpacesInRegularExpressionLiterals": "error",
+        "noUselessCatch": "error",
+        "noUselessTypeConstraint": "error",
+        "noWith": "error"
+      },
+      "correctness": {
+        "noConstAssign": "error",
+        "noConstantCondition": "error",
+        "noEmptyCharacterClassInRegex": "error",
+        "noEmptyPattern": "error",
+        "noGlobalObjectCalls": "error",
+        "noInnerDeclarations": "error",
+        "noInvalidConstructorSuper": "error",
+        "noNewSymbol": "error",
+        "noNonoctalDecimalEscape": "error",
+        "noPrecisionLoss": "error",
+        "noSelfAssign": "error",
+        "noSetterReturn": "error",
+        "noSwitchDeclarations": "error",
+        "noUndeclaredVariables": "error",
+        "noUnreachable": "error",
+        "noUnreachableSuper": "error",
+        "noUnsafeFinally": "error",
+        "noUnsafeOptionalChaining": "error",
+        "noUnusedLabels": "error",
+        "noUnusedVariables": "error",
+        "useArrayLiterals": "off",
+        "useIsNan": "error",
+        "useValidForDirection": "error",
+        "useYield": "error"
+      },
+      "style": { "noNamespace": "error", "useAsConstAssertion": "error" },
+      "suspicious": {
+        "noAsyncPromiseExecutor": "error",
+        "noCatchAssign": "error",
+        "noClassAssign": "error",
+        "noCompareNegZero": "error",
+        "noControlCharactersInRegex": "error",
+        "noDebugger": "error",
+        "noDuplicateCase": "error",
+        "noDuplicateClassMembers": "error",
+        "noDuplicateObjectKeys": "error",
+        "noDuplicateParameters": "error",
+        "noEmptyBlockStatements": "error",
+        "noExplicitAny": "error",
+        "noExtraNonNullAssertion": "error",
+        "noFallthroughSwitchClause": "error",
+        "noFunctionAssign": "error",
+        "noGlobalAssign": "error",
+        "noImportAssign": "error",
+        "noMisleadingCharacterClass": "error",
+        "noMisleadingInstantiator": "error",
+        "noPrototypeBuiltins": "error",
+        "noRedeclare": "error",
+        "noShadowRestrictedNames": "error",
+        "noSparseArray": "error",
+        "noUnsafeDeclarationMerging": "error",
+        "noUnsafeNegation": "error",
+        "useGetterReturn": "error",
+        "useValidTypeof": "error"
+      }
+    },
+    "ignore": ["out/*", "**/*.js", "*.json"]
+  },
+  "javascript": { "formatter": { "quoteStyle": "double" } },
+  "overrides": [
+    {
+      "include": ["*.ts"],
+      "linter": {
+        "rules": {
+          "correctness": { "noUnusedVariables": "error" },
+          "style": {
+            "noInferrableTypes": "off",
+            "noNonNullAssertion": "error",
+            "noVar": "error",
+            "useBlockStatements": "error"
+          },
+          "suspicious": { "noExplicitAny": "off" }
+        }
+      }
+    }
+  ]
+}