chore: scaffold npm package tooling

Author: Transcript-Fetch-Admin

.gitignore

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+node_modules/
+dist/
+coverage/
+*.log
+*.tgz
+.DS_Store
+.env
+.env.*

LICENSE

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+MIT License
+
+Copyright (c) 2026 TranscriptFetch
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

package.json

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+{
+  "name": "transcriptfetch",
+  "version": "0.1.0",
+  "description": "Official Node.js/TypeScript SDK for the TranscriptFetch API: fetch YouTube transcripts, channels, playlists, and search as clean, typed data.",
+  "keywords": [
+    "youtube",
+    "transcript",
+    "captions",
+    "subtitles",
+    "api",
+    "sdk",
+    "rag",
+    "llm",
+    "mcp"
+  ],
+  "license": "MIT",
+  "author": "TranscriptFetch <support@transcriptfetch.com>",
+  "homepage": "https://transcriptfetch.com",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/TranscriptFetch/node-sdk.git"
+  },
+  "bugs": {
+    "url": "https://github.com/TranscriptFetch/node-sdk/issues"
+  },
+  "type": "module",
+  "main": "./dist/index.cjs",
+  "module": "./dist/index.js",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.js",
+      "require": "./dist/index.cjs"
+    }
+  },
+  "files": [
+    "dist",
+    "README.md",
+    "LICENSE",
+    "CHANGELOG.md"
+  ],
+  "engines": {
+    "node": ">=18"
+  },
+  "scripts": {
+    "build": "tsup",
+    "typecheck": "tsc --noEmit",
+    "prepublishOnly": "npm run build"
+  },
+  "devDependencies": {
+    "@types/node": "^20.11.30",
+    "tsup": "^8.0.2",
+    "typescript": "^5.4.5"
+  }
+}

tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "lib": ["ES2022", "DOM"],
+    "declaration": true,
+    "strict": true,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "isolatedModules": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "forceConsistentCasingInFileNames": true,
+    "outDir": "dist"
+  },
+  "include": ["src"]
+}

tsup.config.ts

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+import { defineConfig } from "tsup";
+
+export default defineConfig({
+  entry: ["src/index.ts"],
+  format: ["esm", "cjs"],
+  dts: true,
+  clean: true,
+  sourcemap: true,
+  target: "node18",
+  outExtension({ format }) {
+    return { js: format === "cjs" ? ".cjs" : ".js" };
+  },
+});