chore: Remove node_modules, dist, .env from tracking

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/negotiator/package.json

@@ -1,43 +0,0 @@
-{
-  "name": "negotiator",
-  "description": "HTTP content negotiation",
-  "version": "1.0.0",
-  "contributors": [
-    "Douglas Christopher Wilson <doug@somethingdoug.com>",
-    "Federico Romero <federico.romero@outboxlabs.com>",
-    "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)"
-  ],
-  "license": "MIT",
-  "keywords": [
-    "http",
-    "content negotiation",
-    "accept",
-    "accept-language",
-    "accept-encoding",
-    "accept-charset"
-  ],
-  "repository": "jshttp/negotiator",
-  "devDependencies": {
-    "eslint": "7.32.0",
-    "eslint-plugin-markdown": "2.2.1",
-    "mocha": "9.1.3",
-    "nyc": "15.1.0"
-  },
-  "files": [
-    "lib/",
-    "HISTORY.md",
-    "LICENSE",
-    "index.js",
-    "README.md"
-  ],
-  "engines": {
-    "node": ">= 0.6"
-  },
-  "scripts": {
-    "lint": "eslint .",
-    "test": "mocha --reporter spec --check-leaks --bail test/",
-    "test:debug": "mocha --reporter spec --check-leaks --inspect --inspect-brk test/",
-    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
-    "test-cov": "nyc --reporter=html --reporter=text npm test"
-  }
-}