Improve session discovery UI with intuitive navigation

- Add stats bar showing completed/in-progress/total sessions count
- Add status filter tabs (All, Completed, In Progress)
- Add horizontal carousel display for recent sessions
- Add 'View All Sessions' expandable button
- Add visual divider between recent sessions and new session form
- Improve session cards with better information display
- Make sessions more discoverable and easier to access
- Add filtering and sorting capabilities for better UX

frontend/src/components/CollaborativeInput.vue

@@ -12,6 +12,8 @@ const agentCount = ref(7)
 const isCreating = ref(false)
 const previousSessions = ref([])
 const loadingPreviousSessions = ref(false)
+const showAllSessions = ref(false)
+const sessionStatusFilter = ref('all') // 'all', 'completed', 'ongoing', 'created'
 
 onMounted(async () => {
   loadingPreviousSessions.value = true
@@ -37,6 +39,28 @@ const agentOptions = computed(() => {
   }))
 })
 
+const filteredSessions = computed(() => {
+  let filtered = previousSessions.value
+
+  if (sessionStatusFilter.value !== 'all') {
+    filtered = filtered.filter(s => s.status === sessionStatusFilter.value)
+  }
+
+  return filtered
+})
+
+const displayedSessions = computed(() => {
+  return showAllSessions.value ? filteredSessions.value : filteredSessions.value.slice(0, 6)
+})
+
+const completedCount = computed(() => {
+  return previousSessions.value.filter(s => s.status === 'completed').length
+})
+
+const ongoingCount = computed(() => {
+  return previousSessions.value.filter(s => s.status === 'ongoing').length
+})
+
 const handleFileSelect = (event) => {
   const file = event.target.files?.[0]
   if (file) {
@@ -112,6 +136,88 @@ const removeFile = () => {
         </p>
       </header>
 
+      <!-- Quick Access Section -->
+      <div v-if="previousSessions.length > 0" class="quick-access-section">
+        <div class="stats-bar">
+          <div class="stat">
+            <span class="stat-label">Completed</span>
+            <span class="stat-value">{{ completedCount }}</span>
+          </div>
+          <div class="stat">
+            <span class="stat-label">In Progress</span>
+            <span class="stat-value">{{ ongoingCount }}</span>
+          </div>
+          <div class="stat">
+            <span class="stat-label">Total</span>
+            <span class="stat-value">{{ previousSessions.length }}</span>
+          </div>
+        </div>
+
+        <!-- Status Filter -->
+        <div class="filter-tabs">
+          <button
+            @click="sessionStatusFilter = 'all'"
+            class="filter-btn"
+            :class="{ active: sessionStatusFilter === 'all' }"
+          >
+            All Sessions
+          </button>
+          <button
+            @click="sessionStatusFilter = 'completed'"
+            class="filter-btn"
+            :class="{ active: sessionStatusFilter === 'completed' }"
+          >
+            Completed
+          </button>
+          <button
+            @click="sessionStatusFilter = 'ongoing'"
+            class="filter-btn"
+            :class="{ active: sessionStatusFilter === 'ongoing' }"
+          >
+            In Progress
+          </button>
+        </div>
+
+        <!-- Recent Sessions Grid -->
+        <div class="recent-sessions-scroll">
+          <div class="sessions-carousel">
+            <div
+              v-for="session in displayedSessions"
+              :key="session.sessionId"
+              @click="handleOpenSession(session.sessionId)"
+              class="session-card-horizontal"
+              :class="{ 'status-' + session.status }"
+              :title="session.prompt"
+            >
+              <div class="card-left">
+                <div class="session-id">#{{ session.sessionId }}</div>
+              </div>
+              <div class="card-main">
+                <p class="session-prompt-short">{{ session.prompt.substring(0, 75) }}{{ session.prompt.length > 75 ? '...' : '' }}</p>
+                <p class="session-meta">{{ new Date(session.createdAt).toLocaleDateString() }}</p>
+              </div>
+              <div class="card-right">
+                <span class="status-badge">{{ session.status }}</span>
+              </div>
+            </div>
+          </div>
+        </div>
+
+        <div v-if="filteredSessions.length > 6" class="view-all-container">
+          <button
+            @click="showAllSessions = !showAllSessions"
+            class="view-all-btn"
+          >
+            {{ showAllSessions ? 'Show Less' : `View All (${filteredSessions.length} sessions)` }}
+          </button>
+        </div>
+      </div>
+
+      <!-- Divider -->
+      <div v-if="previousSessions.length > 0" class="divider">
+        <span>Or start a new session</span>
+      </div>
+
       <form @submit.prevent="handleCreateSession" class="form">
         <!-- Project Description -->
         <div class="form-section">
@@ -201,27 +307,6 @@ const removeFile = () => {
         </button>
       </form>
 
-      <!-- Previous Sessions -->
-      <div v-if="previousSessions.length > 0" class="previous-sessions-section">
-        <h2>Recent Sessions</h2>
-        <div class="sessions-grid">
-          <div
-            v-for="session in previousSessions.slice(0, 6)"
-            :key="session.sessionId"
-            @click="handleOpenSession(session.sessionId)"
-            class="session-card"
-            :class="{ 'status-completed': session.status === 'completed' }"
-          >
-            <div class="session-header">
-              <span class="session-id">#{{ session.sessionId }}</span>
-              <span class="session-status">{{ session.status }}</span>
-            </div>
-            <p class="session-prompt">{{ session.prompt.substring(0, 100) }}...</p>
-            <p class="session-date">{{ new Date(session.createdAt).toLocaleDateString() }}</p>
-          </div>
-        </div>
-      </div>
-
       <footer class="footer">
         <p>Typical session: 2-5 rounds for complete consensus. Output format: Markdown</p>
       </footer>
@@ -617,6 +702,225 @@ const removeFile = () => {
   font-size: 0.85rem;
 }
 
+/* Quick Access Section */
+.quick-access-section {
+  margin-bottom: 2rem;
+}
+
+.stats-bar {
+  display: flex;
+  gap: 1.5rem;
+  margin-bottom: 1.5rem;
+  padding: 1rem 1.5rem;
+  background: rgba(102, 126, 234, 0.08);
+  border: 1px solid rgba(102, 126, 234, 0.2);
+  border-radius: 12px;
+  backdrop-filter: blur(10px);
+}
+
+.stat {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.stat-label {
+  font-size: 0.8rem;
+  color: rgba(255, 255, 255, 0.5);
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+  font-weight: 600;
+}
+
+.stat-value {
+  font-size: 1.8rem;
+  color: rgba(102, 126, 234, 0.95);
+  font-weight: 700;
+  margin-top: 0.25rem;
+}
+
+.filter-tabs {
+  display: flex;
+  gap: 0.75rem;
+  margin-bottom: 1.5rem;
+  flex-wrap: wrap;
+}
+
+.filter-btn {
+  padding: 0.6rem 1.2rem;
+  background: rgba(255, 255, 255, 0.05);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  color: rgba(255, 255, 255, 0.6);
+  border-radius: 8px;
+  cursor: pointer;
+  font-size: 0.9rem;
+  font-weight: 500;
+  transition: all 0.3s ease;
+  backdrop-filter: blur(5px);
+}
+
+.filter-btn:hover {
+  background: rgba(102, 126, 234, 0.2);
+  border-color: rgba(102, 126, 234, 0.4);
+  color: rgba(255, 255, 255, 0.8);
+}
+
+.filter-btn.active {
+  background: rgba(102, 126, 234, 0.3);
+  border-color: rgba(102, 126, 234, 0.6);
+  color: rgba(255, 255, 255, 0.95);
+  box-shadow: 0 0 15px rgba(102, 126, 234, 0.2);
+}
+
+.recent-sessions-scroll {
+  overflow-x: auto;
+  margin-bottom: 1rem;
+  padding-bottom: 0.5rem;
+}
+
+.sessions-carousel {
+  display: flex;
+  gap: 1rem;
+  min-width: min-content;
+}
+
+.session-card-horizontal {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  min-width: 350px;
+  padding: 1rem;
+  background: rgba(102, 126, 234, 0.1);
+  border: 1px solid rgba(102, 126, 234, 0.3);
+  border-radius: 12px;
+  cursor: pointer;
+  transition: all 0.3s ease;
+  backdrop-filter: blur(10px);
+}
+
+.session-card-horizontal:hover {
+  background: rgba(102, 126, 234, 0.15);
+  border-color: rgba(102, 126, 234, 0.5);
+  transform: translateY(-2px);
+  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.2);
+}
+
+.session-card-horizontal.status-completed {
+  border-color: rgba(76, 175, 80, 0.3);
+  background: rgba(76, 175, 80, 0.05);
+}
+
+.session-card-horizontal.status-completed:hover {
+  background: rgba(76, 175, 80, 0.12);
+  border-color: rgba(76, 175, 80, 0.5);
+  box-shadow: 0 8px 20px rgba(76, 175, 80, 0.15);
+}
+
+.card-left {
+  flex-shrink: 0;
+}
+
+.card-main {
+  flex: 1;
+  min-width: 0;
+}
+
+.session-prompt-short {
+  margin: 0;
+  color: rgba(255, 255, 255, 0.8);
+  font-size: 0.95rem;
+  font-weight: 500;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.session-meta {
+  margin: 0.25rem 0 0 0;
+  color: rgba(255, 255, 255, 0.4);
+  font-size: 0.8rem;
+}
+
+.card-right {
+  flex-shrink: 0;
+}
+
+.status-badge {
+  display: inline-flex;
+  align-items: center;
+  padding: 0.4rem 0.8rem;
+  background: rgba(76, 175, 80, 0.2);
+  color: rgba(76, 175, 80, 0.9);
+  border-radius: 20px;
+  font-size: 0.75rem;
+  font-weight: 600;
+  text-transform: capitalize;
+  white-space: nowrap;
+}
+
+.session-card-horizontal.status-ongoing .status-badge {
+  background: rgba(102, 126, 234, 0.2);
+  color: rgba(102, 126, 234, 0.9);
+}
+
+.view-all-container {
+  text-align: center;
+  margin-top: 1rem;
+}
+
+.view-all-btn {
+  padding: 0.7rem 1.5rem;
+  background: rgba(102, 126, 234, 0.15);
+  border: 1px solid rgba(102, 126, 234, 0.3);
+  color: rgba(102, 126, 234, 0.9);
+  border-radius: 8px;
+  cursor: pointer;
+  font-size: 0.9rem;
+  font-weight: 600;
+  transition: all 0.3s ease;
+  backdrop-filter: blur(5px);
+}
+
+.view-all-btn:hover {
+  background: rgba(102, 126, 234, 0.25);
+  border-color: rgba(102, 126, 234, 0.5);
+  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
+}
+
+.divider {
+  text-align: center;
+  margin: 2rem 0;
+  position: relative;
+}
+
+.divider span {
+  background: linear-gradient(
+    -45deg,
+    #0f0c29 0%,
+    #302b63 25%,
+    #24243e 50%,
+    #302b63 75%,
+    #0f0c29 100%
+  );
+  padding: 0 1rem;
+  color: rgba(255, 255, 255, 0.4);
+  font-size: 0.9rem;
+  font-weight: 500;
+  position: relative;
+  z-index: 1;
+}
+
+.divider::before {
+  content: '';
+  position: absolute;
+  top: 50%;
+  left: 0;
+  right: 0;
+  height: 1px;
+  background: linear-gradient(to right, transparent, rgba(102, 126, 234, 0.2), transparent);
+  z-index: 0;
+}
+
 @media (max-width: 768px) {
   .collaborative-input {
     padding: 1rem;