refactor(core): Set up @n8n/errors package (#16918)

packages/@n8n/errors/eslint.config.mjs

@@ -0,0 +1,8 @@
+import { defineConfig } from 'eslint/config';
+import { baseConfig } from '@n8n/eslint-config/base';
+
+export default defineConfig(baseConfig, {
+	rules: {
+		'unicorn/filename-case': ['error', { case: 'kebabCase' }],
+	},
+});

packages/@n8n/errors/package.json

@@ -0,0 +1,26 @@
+{
+  "name": "@n8n/errors",
+  "version": "0.1.0",
+  "scripts": {
+    "clean": "rimraf dist .turbo",
+    "dev": "pnpm watch",
+    "typecheck": "tsc --noEmit",
+    "build": "tsc -p tsconfig.build.json",
+    "format": "biome format --write .",
+    "format:check": "biome ci .",
+    "lint": "eslint . --quiet",
+    "lintfix": "eslint . --fix",
+    "watch": "tsc -p tsconfig.build.json --watch",
+    "test": "jest",
+    "test:dev": "jest --watch"
+  },
+  "main": "dist/index.js",
+  "module": "src/index.ts",
+  "types": "dist/index.d.ts",
+  "files": [
+    "dist/**/*"
+  ],
+  "devDependencies": {
+    "@n8n/typescript-config": "workspace:*"
+  }
+}

packages/@n8n/errors/src/index.ts

@@ -0,0 +1 @@
+export {};

packages/@n8n/errors/tsconfig.build.json

@@ -0,0 +1,11 @@
+{
+	"extends": ["./tsconfig.json", "@n8n/typescript-config/tsconfig.build.json"],
+	"compilerOptions": {
+		"composite": true,
+		"rootDir": "src",
+		"outDir": "dist",
+		"tsBuildInfoFile": "dist/build.tsbuildinfo"
+	},
+	"include": ["src/**/*.ts"],
+	"exclude": ["src/**/__tests__/**"]
+}

packages/@n8n/errors/tsconfig.json

@@ -0,0 +1,12 @@
+{
+	"extends": "@n8n/typescript-config/tsconfig.common.json",
+	"compilerOptions": {
+		"rootDir": ".",
+		"types": ["node", "jest"],
+		"baseUrl": "src",
+		"tsBuildInfoFile": "dist/typecheck.tsbuildinfo",
+		"experimentalDecorators": true,
+		"emitDecoratorMetadata": true
+	},
+	"include": ["src/**/*.ts"]
+}