Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/shared/composables/useExpandableContent.js

@@ -0,0 +1,62 @@
+import { ref, computed, nextTick, onMounted } from 'vue';
+import { useToggle, useResizeObserver } from '@vueuse/core';
+
+/**
+ * Composable for handling expandable content with "Read more / Read less" functionality.
+ * Detects content overflow and provides toggle state for expansion.
+ *
+ * @param {Object} options - Configuration options
+ * @param {number} [options.maxLines=2] - Maximum number of lines before showing toggle
+ * @param {number} [options.defaultLineHeight=20] - Fallback line height if computed style is unavailable
+ * @param {boolean} [options.useResizeObserverForCheck=false] - Use ResizeObserver for continuous overflow checking
+ * @returns {Object} - Composable state and methods
+ */
+export function useExpandableContent(options = {}) {
+  const {
+    maxLines = 2,
+    defaultLineHeight = 20,
+    useResizeObserverForCheck = false,
+  } = options;
+
+  const contentElement = ref(null);
+  const [isExpanded, toggleExpanded] = useToggle(false);
+  const needsToggle = ref(false);
+
+  const showReadMore = computed(() => needsToggle.value && !isExpanded.value);
+  const showReadLess = computed(() => needsToggle.value && isExpanded.value);
+
+  /**
+   * Checks if content overflows the maximum allowed height
+   * and updates needsToggle accordingly
+   */
+  const checkOverflow = () => {
+    if (!contentElement.value) return;
+
+    const element = contentElement.value;
+    const computedStyle = window.getComputedStyle(element);
+    const lineHeight =
+      parseFloat(computedStyle.lineHeight) || defaultLineHeight;
+    const maxHeight = lineHeight * maxLines;
+
+    needsToggle.value = element.scrollHeight > maxHeight;
+  };
+
+  // Setup overflow checking based on configuration
+  if (useResizeObserverForCheck) {
+    useResizeObserver(contentElement, checkOverflow);
+  } else {
+    onMounted(() => {
+      nextTick(checkOverflow);
+    });
+  }
+
+  return {
+    contentElement,
+    isExpanded,
+    needsToggle,
+    showReadMore,
+    showReadLess,
+    toggleExpanded,
+    checkOverflow,
+  };
+}