move js files

assets/javascript/numberInputs.js

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+// Function to initialize number input buttons
+function initNumberInputs(container = document) {
+    container.querySelectorAll('.number-input-wrapper').forEach(function(wrapper) {
+        const input = wrapper.querySelector('input[type="number"]');
+        const decreaseBtn = wrapper.querySelector('[data-action="decrease"]');
+        const increaseBtn = wrapper.querySelector('[data-action="increase"]');
+
+        if (!input || !decreaseBtn || !increaseBtn) return;
+
+        // Skip if already initialized
+        if (decreaseBtn.hasAttribute('data-initialized')) return;
+
+        const step = parseFloat(input.getAttribute('step')) || 1;
+        const min = 0;
+        const max = input.getAttribute('max') ? parseFloat(input.getAttribute('max')) : null;
+
+        decreaseBtn.addEventListener('click', function() {
+            const currentValue = parseFloat(input.value) || 0;
+            const newValue = currentValue - step;
+
+            if (min === null || newValue >= min) {
+                input.value = newValue;
+                input.dispatchEvent(new Event('change', { bubbles: true }));
+            }
+        });
+
+        increaseBtn.addEventListener('click', function() {
+            const currentValue = parseFloat(input.value) || 0;
+            const newValue = currentValue + step;
+
+            if (max === null || newValue <= max) {
+                input.value = newValue;
+                input.dispatchEvent(new Event('change', { bubbles: true }));
+            }
+        });
+
+        // Validate input on change
+        input.addEventListener('input', function() {
+            const value = parseFloat(this.value);
+
+            if (min !== null && value < min) {
+                this.value = min;
+            }
+            if (max !== null && value > max) {
+                this.value = max;
+            }
+        });
+
+        // Mark as initialized
+        decreaseBtn.setAttribute('data-initialized', 'true');
+        increaseBtn.setAttribute('data-initialized', 'true');
+    });
+}
+
+export { initNumberInputs };