feat: initialize TypeScript configuration and Vitest setup

- Add pnpm workspace configuration to specify built dependencies.
- Create tsconfig.json for TypeScript compiler options and module resolution.
- Add tsconfig.build.json for build-specific TypeScript settings.
- Set up Vitest configuration with path aliasing for testing.

biome.json

@@ -0,0 +1,55 @@
+{
+	"$schema": "https://biomejs.dev/schemas/2.4.3/schema.json",
+	"vcs": {
+		"enabled": true,
+		"clientKind": "git",
+		"useIgnoreFile": true
+	},
+	"files": {
+		"ignoreUnknown": false
+	},
+	"formatter": {
+		"enabled": true,
+		"formatWithErrors": false,
+		"indentStyle": "space",
+		"indentWidth": 2,
+		"lineEnding": "lf",
+		"lineWidth": 80,
+		"attributePosition": "auto",
+		"bracketSameLine": false,
+		"bracketSpacing": true,
+		"expand": "auto",
+		"useEditorconfig": true
+	},
+	"linter": {
+		"enabled": true,
+		"rules": {
+			"recommended": true,
+			"suspicious": {
+				"noExplicitAny": "off"
+			},
+			"style": {
+				"noNonNullAssertion": "off"
+			}
+		}
+	},
+	"javascript": {
+		"formatter": {
+			"quoteProperties": "asNeeded",
+			"trailingCommas": "all",
+			"semicolons": "asNeeded",
+			"arrowParentheses": "always",
+			"bracketSameLine": false,
+			"quoteStyle": "single",
+			"bracketSpacing": true
+		}
+	},
+	"assist": {
+		"enabled": true,
+		"actions": {
+			"source": {
+				"organizeImports": "on"
+			}
+		}
+	}
+}