Fix Jest configuration for monorepo node-renderer tests

This commit fixes the "No tests found" CI error by properly configuring
Jest to find and run tests in the monorepo structure.

**Changes:**

1. **Added Jest `roots` configuration** (react_on_rails_pro/package.json):
   - Tells Jest to search for tests in `../packages/react-on-rails-pro-node-renderer`
   - Previously Jest only searched in the current directory

2. **Added Jest `moduleNameMapper`** (react_on_rails_pro/package.json):
   - Strips `.js` extensions from TypeScript imports: `^(\.{1,2}/.*)\.js$ → $1`
   - Allows babel-jest to resolve TypeScript files properly
   - Fixes: "Cannot find module '../shared/sharedConsoleHistory.js'" errors

3. **Simplified test scripts** (react_on_rails_pro/package-scripts.yml):
   - Removed path arguments from jest commands
   - Jest now uses `roots` config instead of command-line arguments

**Before:**
```
No tests found, exiting with code 1
Pattern: ../packages/react-on-rails-pro-node-renderer - 0 matches
```

**After:**
```
Test Suites: 10 total
Tests are found and executed successfully
```

This is part of Phase 5 of the monorepo migration to properly support
the node-renderer package location at `packages/react-on-rails-pro-node-renderer/`.

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

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

Author: justin808

react_on_rails_pro/package-scripts.yml

@@ -2,14 +2,14 @@ scripts:
   test:
     default:
       description: Run all JS tests
-      script: jest ../packages/react-on-rails-pro-node-renderer
+      script: jest
     ci:
       description: Run all JS tests in CI mode
       # https://circleci.com/docs/collect-test-data/#jest
-      script: jest --ci --runInBand --reporters=default --reporters=jest-junit -- ../packages/react-on-rails-pro-node-renderer
+      script: jest --ci --runInBand --reporters=default --reporters=jest-junit
     debug:
       description: Debug all JS tests
-      script: ndb jest --runInBand ../packages/react-on-rails-pro-node-renderer
+      script: ndb jest --runInBand
   check:
     description: Run all checks
     script: nps lint && nps format.listDifferent && nps test && nps check-typescript

react_on_rails_pro/package.json

@@ -122,8 +122,14 @@
     "coverageReporters": [
       "lcov"
     ],
+    "moduleNameMapper": {
+      "^(\\.{1,2}/.*)\\.js$": "$1"
+    },
     "resetModules": true,
     "resetMocks": true,
+    "roots": [
+      "../packages/react-on-rails-pro-node-renderer"
+    ],
     "setupFiles": [
       "../packages/react-on-rails-pro-node-renderer/tests/helper.ts"
     ],