feat(cli): add binary build support for interactive CLI

Add esbuild-based build script to bundle CLI tools into standalone
binaries that can be run directly with node. The built binaries
externalize dependencies to keep bundle size small and avoid
bundling issues with native modules.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -4,6 +4,12 @@
   "description": "",
   "type": "module",
   "main": "dist/index.js",
+  "bin": {
+    "multica": "./bin/multica-interactive.mjs",
+    "multica-interactive": "./bin/multica-interactive.mjs",
+    "multica-cli": "./bin/multica-cli.mjs",
+    "multica-profile": "./bin/multica-profile.mjs"
+  },
   "scripts": {
     "dev": "tsx src/index.ts",
     "agent:cli": "tsx src/agent/cli.ts",
@@ -15,6 +21,7 @@
     "dev:desktop": "pnpm --filter @multica/desktop dev",
     "build": "turbo build",
     "build:sdk": "pnpm --filter @multica/sdk build",
+    "build:cli": "node scripts/build-cli.js",
     "start": "node dist/index.js",
     "typecheck": "turbo typecheck",
     "test": "vitest run",
@@ -30,6 +37,7 @@
     "@types/turndown": "^5.0.6",
     "@types/uuid": "^11.0.0",
     "@vitest/coverage-v8": "^4.0.18",
+    "esbuild": "^0.27.2",
     "tsx": "^4.21.0",
     "turbo": "^2.3.4",
     "typescript": "catalog:",