Add some new commands for the Crawl4ai script transpiler and creating an interactive tutorial that allows users to go through multiple steps and apply the syntax to automate the page. Fixed some issues and add several new commands for setting input values, variables, clearing input fields, and more.

docs/examples/c4a_script/tutorial/scripts/03-infinite-scroll.c4a

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+# Infinite Scroll Product Loading
+# Load all products using scroll automation
+
+# Navigate to catalog
+CLICK `#catalog-link`
+WAIT `.product-grid` 3
+
+# Switch to infinite scroll mode
+CLICK `#infinite-scroll-btn`
+
+# Define scroll procedure
+PROC load_more_products
+  # Get current product count
+  EVAL `window.initialCount = document.querySelectorAll('.product-card').length`
+  
+  # Scroll down
+  SCROLL DOWN 1000
+  WAIT 2
+  
+  # Check if more products loaded
+  EVAL `
+    const newCount = document.querySelectorAll('.product-card').length;
+    console.log('Products loaded: ' + newCount);
+    window.moreLoaded = newCount > window.initialCount;
+  `
+ENDPROC
+
+# Load products until no more
+REPEAT (load_more_products, `window.moreLoaded !== false`)
+
+# Final count
+EVAL `console.log('✅ Total products: ' + document.querySelectorAll('.product-card').length)`