chore: update .gitignore with more comprehensive exclusions

feat(.npmignore): create .npmignore to specify files to ignore when publishing
perf(package.json): add --clean flag to build script for cleaner builds

.gitignore

@@ -1,10 +1,26 @@
-# Modules:
-node_modules
+# Idea IDE:
+**/.idea/
 
-# Build:
-dist
+# Package lock (except for PNPM):
+**/yarn.lock
+**/package-lock.json
+**/bun.lockb
 
-# Lock files:
-package-lock.json
-yarn.lock
-pnpm-lock.yaml
+# Packages:
+**/node_modules
+
+# Environment variables and secrets files:
+**/.env*
+
+# ESLint Inspector:
+.eslint-config-inspector
+
+# Builds:
+**/build
+**/dist
+
+# TS:
+**/*.tsbuildinfo
+
+# MacOS
+**/.DS_Store

.npmignore

@@ -0,0 +1,9 @@
+# Project:
+src
+
+# Configs:
+eslint.config.js
+tsconfig.json
+
+# GitHub:
+.github

package.json

@@ -8,7 +8,7 @@
   "module": "dist/index.mjs",
   "types": "dist/index.d.ts",
   "scripts": {
-    "build": "tsup src/index.ts --minify --format cjs,esm --dts",
+    "build": "tsup src/index.ts --minify --format cjs,esm --clean --dts",
     "test": "vitest --ui",
     "lint": "eslint .",
     "lint:fix": "eslint . --fix",