**feat(tests): add tests for TextEncoder, TensorFlow.js, and fallback mechanisms**

- Introduced `test-fallback-function.js` and `test-fallback-simple.js` to validate `executeInThread` fallback functionality with both named and anonymous compute-intensive functions.
- Added `test-tensorflow-textencoder.js` for TensorFlow.js and TextEncoder tests in a Node.js environment.
- Created `test-tensorflow-textencoder.html` for browser-based TensorFlow.js and TextEncoder tests.
- Implemented cross-environment test support in `cli-package/src/test-tensorflow-textencoder.ts` for CLI functionality.
- Enhanced `src/utils/embedding.ts`, `textEncoding.ts`, and `brainy-wrapper.js` to include updated global `TextEncoder` and `TextDecoder` utilities for compatibility and worker improvements.
- Standardized and expanded utility methods in `PlatformNode` for broader support, including `isFloat32Array` and `isTypedArray` checks.
- Updated Node.js requirement to `>= 24.4.0` across documentation and configuration files for compatibility improvements.

This update introduces comprehensive testing for fallback mechanisms, TensorFlow.js, and TextEncoder across multiple environments, ensuring robustness and compatibility.

scripts/test-all-environments.js

@@ -66,6 +66,11 @@ async function runAllTests() {
     runCommand('npm run build')
     log('Main package built successfully!', colors.green)
 
+    // Apply TextEncoder patch
+    log('Applying TextEncoder patch...', colors.yellow)
+    runCommand('node scripts/patch-textencoder.js')
+    log('TextEncoder patch applied successfully!', colors.green)
+
     // Build the browser package
     log('Building browser package...', colors.yellow)
     runCommand('npm run build:browser')
@@ -89,6 +94,11 @@ async function runAllTests() {
     log(textEncodingResult)
     log('Unified text encoding test completed!', colors.green)
 
+    log('Running TensorFlow and TextEncoder test...', colors.yellow)
+    const tensorflowTextEncoderResult = runCommand('node test-tensorflow-textencoder.js')
+    log(tensorflowTextEncoderResult)
+    log('TensorFlow and TextEncoder test completed!', colors.green)
+
     logSection('RUNNING BROWSER TESTS')
 
     // Start a simple HTTP server to serve the test files
@@ -214,6 +224,25 @@ async function runAllTests() {
     log('Fallback test result:', colors.green)
     log(fallbackResult.replace(/<[^>]*>/g, '').trim())
 
+    // Test TensorFlow and TextEncoder in browser
+    log('Running TensorFlow and TextEncoder browser test...', colors.yellow)
+    await page.goto(`http://localhost:${PORT}/demo/test-tensorflow-textencoder.html`)
+    await page.waitForSelector('#runTest')
+    await page.click('#runTest')
+    await page.waitForFunction(
+      () => {
+        const resultText = document.getElementById('result').textContent
+        return resultText.includes('Test completed')
+      },
+      { timeout: 30000 }
+    )
+
+    const browserTensorflowTextEncoderResult = await page.evaluate(() => {
+      return document.getElementById('result').innerHTML
+    })
+    log('TensorFlow and TextEncoder browser test result:', colors.green)
+    log(browserTensorflowTextEncoderResult.replace(/<[^>]*>/g, '').trim())
+
     // Close the browser and server
     await browser.close()
     server.close()
@@ -239,6 +268,11 @@ async function runAllTests() {
       log('Testing pipeline command...', colors.yellow)
       const pipelineResult = runCommand('brainy test-pipeline "This is a test"')
       log('Pipeline test completed!', colors.green)
+
+      // Test TensorFlow and TextEncoder in CLI
+      log('Testing TensorFlow and TextEncoder in CLI...', colors.yellow)
+      const cliTensorflowResult = runCommand('brainy test-tensorflow-textencoder')
+      log('TensorFlow and TextEncoder CLI test completed!', colors.green)
     } catch (error) {
       log(
         "CLI tests failed. This might be expected if you don't have the CLI installed globally.",