fix: install dependencies in validation workflow (#152)

The validation script requires the 'glob' package from devDependencies.
Also improve error visibility by using tee to show output in logs.

Fixes CI failures where validation script fails with module not found error.

.github/workflows/validate-registry.yml

@@ -120,6 +120,12 @@ jobs:
         with:
           bun-version: latest
       
+      - name: Install dependencies
+        if: github.event.inputs.skip_validation != 'true'
+        run: |
+          # Install root dependencies (glob package needed for validation script)
+          bun install --frozen-lockfile
+      
       - name: Make scripts executable
         if: github.event.inputs.skip_validation != 'true'
         run: |
@@ -201,7 +207,8 @@ jobs:
           echo "" >> $GITHUB_STEP_SUMMARY
           
           # Use TypeScript validator (fast and reliable)
-          if bun run scripts/registry/validate-registry.ts > /tmp/validation-output.txt 2>&1; then
+          # Run validation and capture output (show in logs AND save to file)
+          if bun run scripts/registry/validate-registry.ts 2>&1 | tee /tmp/validation-output.txt; then
             echo "validation=passed" >> $GITHUB_OUTPUT
             echo "✅ All registry paths are valid!" >> $GITHUB_STEP_SUMMARY
             echo "" >> $GITHUB_STEP_SUMMARY
@@ -215,6 +222,8 @@ jobs:
             echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
             cat /tmp/validation-output.txt >> $GITHUB_STEP_SUMMARY
             echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
+            echo "" >> $GITHUB_STEP_SUMMARY
+            echo "**Check the logs above for detailed error output**" >> $GITHUB_STEP_SUMMARY
             exit 1
           fi