fix: v0.10.4 session list scrolls on its own

No cap on sessions existed, but only the whole Panels column scrolled, so
many sessions pushed Ops Alerts and Repo/CI far down. The list now has its
own scroll area (46vh), keeps its position across polls and brings the
current session into view on switch. Closes #53

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WHRLCCdXYm41Qx5kNhehaP

debian/changelog

@@ -1,3 +1,11 @@
+devdesk (0.10.4) bookworm; urgency=medium
+
+  * The Sessions panel's list scrolls on its own (#53). There is no cap on
+    sessions; with many of them, Ops Alerts and Repo/CI stay in reach below
+    the list. The current session is scrolled into view when you switch.
+
+ -- Jared Vititoe <jjvititoe1@gmail.com>  Thu, 22 Oct 2026 20:53:00 -0400
+
 devdesk (0.10.3) bookworm; urgency=medium
 
   * No tmux right-click menus (#52). A stray click on one split a pane, or

web/src/sessions.js

@@ -366,7 +366,15 @@ export class SessionsPanel {
           }, '×'))));
     }
     if (!items.length) items.push(el('li', { class: 'dd-empty' }, 'No sessions yet.'));
+    const scroll = this.list.scrollTop;
     this.list.replaceChildren(...items);
+    // Keep the scroll position across polls; bring the current session into view
+    // when it changes.
+    this.list.scrollTop = scroll;
+    if (this.current !== this.shownCurrent) {
+      this.shownCurrent = this.current;
+      this.list.querySelector('.is-current')?.scrollIntoView({ block: 'nearest' });
+    }
 
     this.projectOptions(this.select);
   }

web/styles.css

@@ -239,6 +239,13 @@ body.dd-sidebar-open .dd-sidebar {
   flex-direction: column;
   gap: 2px;
   margin-bottom: var(--space-sm);
+  /* Any number of sessions: the list scrolls on its own so the panels below stay
+     in reach (devdesk#53). */
+  max-height: 46vh;
+  overflow-y: auto;
+  overscroll-behavior: contain;
+  scrollbar-width: thin;
+  scrollbar-color: var(--bg-tertiary) transparent;
 }
 
 .dd-session-item {