Fix workspace dependency resolution for react-on-rails

**Problem:**
Pro packages were using `react-on-rails: "*"` which resolved to version
16.1.2 from npm instead of the workspace version 16.2.0-beta.12. This
caused webpack build failures in CI when examples imported Pro packages
via relative paths, because:

1. Example pack imports `../../../packages/react-on-rails-pro/lib/ReactOnRails.client.js`
2. Pro file imports `from 'react-on-rails/@internal/base/client'`
3. Webpack resolves from Pro package location, finding old 16.1.2 in node_modules
4. Old package.json lacks required exports like `./@internal/base/client`

**Solution:**
Changed Pro package dependencies from `"*"` to `"^16.2.0-beta.12"` to
ensure workspace version is used. Yarn now properly hoists the workspace
package to root node_modules.

**Errors Fixed:**
```
Module not found: Error: Package path ./pageLifecycle is not exported
Module not found: Error: Package path ./context is not exported
Module not found: Error: Package path ./@internal/base/client is not exported
```

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <[email protected]>

Author: justin808

packages/react-on-rails-pro-node-renderer/package.json

@@ -51,7 +51,7 @@
     "node-html-parser": "^7.0.1",
     "nps": "^5.9.12",
     "pino-pretty": "^13.0.0",
-    "react-on-rails": "*",
+    "react-on-rails": "^16.2.0-beta.12",
     "redis": "^5.0.1",
     "sentry-testkit": "^5.0.6",
     "touch": "^3.1.0",

packages/react-on-rails-pro/package.json

@@ -55,7 +55,7 @@
     "./ServerComponentFetchError": "./lib/ServerComponentFetchError.js"
   },
   "dependencies": {
-    "react-on-rails": "*"
+    "react-on-rails": "^16.2.0-beta.12"
   },
   "peerDependencies": {
     "react": ">= 16",