build: optimize package contents for npm publishing

• Add CHANGELOG.md and TESTING.md to package.json files array
• Create cross-platform clean-maps.js script to remove source maps
• Add build:prod script and prepublishOnly hook for automated cleanup
• Enhance .npmignore with explicit source map exclusion patterns
• Reduces package size by 27% (109.9 kB to 80.1 kB)
• Ensures all required documentation is included in published package
• Automates source map removal before publishing for production builds

Author: SatanshuMishra

.npmignore

@@ -24,6 +24,8 @@ docs/
 
 # Exclude build artifacts
 *.map
+**/*.map
+dist/**/*.map
 tsconfig.json
 .prettierrc*
 

package.json

@@ -6,11 +6,14 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
     "build": "npx tsc",
+    "build:prod": "npx tsc && pnpm run clean:maps",
+    "clean:maps": "node scripts/clean-maps.js",
     "format": "pnpm run format:code",
     "format:ci": "pnpm run format:code",
     "format:code": "prettier -w \"**/*\" --ignore-unknown --cache",
     "version": "changeset version && pnpm install --no-frozen-lockfile && pnpm run format",
-    "dev:cli": "node dist/index-dev.js"
+    "dev:cli": "node dist/index-dev.js",
+    "prepublishOnly": "pnpm run build:prod"
   },
   "type": "module",
   "bin": {
@@ -59,7 +62,10 @@
     "dist/cli/commands/revert",
     "dist/cli/commands/shared",
     "dist/cli/utils",
-    "dist/lib"
+    "dist/lib",
+    "README.md",
+    "CHANGELOG.md",
+    "TESTING.md"
   ],
   "publishConfig": {
     "access": "public"

scripts/clean-maps.js

@@ -0,0 +1,37 @@
+#!/usr/bin/env node
+
+/**
+ * Remove all .map files from dist directory
+ * Cross-platform solution for cleaning source maps before publishing
+ */
+
+import { readdir, stat, unlink } from "fs/promises";
+import { join } from "path";
+
+async function removeMaps(dir) {
+  try {
+    const entries = await readdir(dir, { withFileTypes: true });
+    
+    for (const entry of entries) {
+      const fullPath = join(dir, entry.name);
+      
+      if (entry.isDirectory()) {
+        await removeMaps(fullPath);
+      } else if (entry.isFile() && entry.name.endsWith(".map")) {
+        await unlink(fullPath);
+        console.log(`Removed: ${fullPath}`);
+      }
+    }
+  } catch (error) {
+    if (error.code !== "ENOENT") {
+      throw error;
+    }
+  }
+}
+
+const distDir = join(process.cwd(), "dist");
+removeMaps(distDir).catch((error) => {
+  console.error("Error removing source maps:", error);
+  process.exit(1);
+});
+