fix: use correct Python path in CI builds

- Detect pythonLocation environment variable from GitHub Actions
- Use the actual Python binary path instead of /usr/bin/python3
- Add logging to show which Python is being used

Author: isiahw1

scripts/build.js

@@ -5,13 +5,21 @@ const { execSync } = require('child_process');
 // Check if we're in a CI environment
 const isCI = process.env.CI === 'true';
 
+// Determine Python executable
+let pythonCmd = 'python3';
+if (process.env.pythonLocation) {
+  // GitHub Actions sets pythonLocation
+  pythonCmd = `${process.env.pythonLocation}/bin/python`;
+}
+
 // Build command with appropriate flags
 const buildCmd = isCI
-  ? 'uv pip install --system --python /usr/bin/python3 -e .'
-  : 'uv pip install --python /usr/bin/python3 -e .';
+  ? `uv pip install --system --python ${pythonCmd} -e .`
+  : `uv pip install --python ${pythonCmd} -e .`;
 
 try {
   console.log('🔨 Building package...');
+  console.log(`Using Python: ${pythonCmd}`);
   execSync(buildCmd, { stdio: 'inherit' });
   console.log('✅ Build complete');
 } catch (error) {