feat(webui): add dashboard stat details

webui/index.html

@@ -196,18 +196,38 @@
             <div class="panel stat-panel">
               <div class="section-title">Channels</div>
               <div class="stat-value channel-count">0</div>
+              <div class="stat-caption">Tracked channels</div>
+              <div class="stat-meta">
+                <span><strong class="channel-active-count">0</strong> Active</span
+                ><span><strong class="channel-inactive-count">0</strong> Inactive</span>
+              </div>
             </div>
             <div class="panel stat-panel">
               <div class="section-title">Media scraping</div>
               <div class="stat-value stat-compact scrape-media-label">OFF</div>
+              <div class="stat-caption">Items downloaded</div>
+              <div class="stat-meta">
+                <span><strong class="media-session-count">0</strong> This session</span
+                ><span><strong class="media-total-count">0</strong> Total</span>
+              </div>
             </div>
             <div class="panel stat-panel">
               <div class="section-title">Forwarding rules</div>
               <div class="stat-value forwarding-count">0</div>
+              <div class="stat-caption">Active rules</div>
+              <div class="stat-meta">
+                <span><strong class="forwarding-active-count">0</strong> Active</span
+                ><span><strong>0</strong> Paused</span>
+              </div>
             </div>
             <div class="panel stat-panel">
               <div class="section-title">Account health</div>
               <div class="stat-value stat-compact account-health-label">-</div>
+              <div class="stat-caption">Session status</div>
+              <div class="stat-meta">
+                <span><strong class="health-session-value">-</strong> Session</span
+                ><span><strong class="health-rate-value">-</strong> Rate limit</span>
+              </div>
               <div class="muted small account-health-detail"></div>
             </div>
           </section>