Session list stuck on "加载更多" (Load more) when switching projects #30333

Description

Bug description

When switching between working directories/projects within a single opencode
session, the left-hand session list gets stuck on a permanent "加载更多"
(Load more) state. The list never renders any of the project's prior
sessions, and clicking the "加载更多" label does nothing.

A full app restart resolves the issue.

Steps to reproduce

1. Launch opencode.
2. Open project A (a directory that has prior sessions in opencode.db).
3. Without quitting, switch to project B (another directory with its own
   session history) — either via the "最近项目" (Recent projects) entry on
   the home page, or via File → Open Folder.
4. Observe the left sidebar.

Expected behavior

• The session list for project B should render, showing its prior sessions
  ordered most-recent first.
• If project B has no prior sessions, an empty-state message should be
  shown — not a "加载更多" button.
• Clicking "加载更多" should at minimum toggle state, or be hidden if there
  is nothing more to load.

Actual behavior

The sidebar shows only:

• the "新建会话" (New session) button at the top
• a persistent "加载更多" text below

No session items ever appear. The state never recovers without a full
process restart. Switching back to project A also shows the same broken
state until opencode is restarted.

Environment

• OS: Windows 10/11 (win32)
• opencode desktop version: 1.15.13
• @opencode-ai/plugin version: 1.14.19
• Install method: official desktop installer
  (%LocalAppData%\Programs\@opencode-aidesktop\OpenCode.exe)
• DevTools console: no errors or warnings related to this
• DevTools Network: no hanging / red requests observed

Diagnosis / hints

The behavior is consistent with a leaked store state across project
switches — the session-list store appears to retain hasMore = true (or
an equivalent "loading" flag) from the previously-active project, and
the new project never resets it.

Supporting evidence:

• The bug does not appear on a fresh launch into a project.
• Full process exit + relaunch fixes it (store is re-initialized).
• It is independent of the switch path (recent-project entry vs.
  File → Open Folder both reproduce).
• DevTools is silent, so this is a UI state-machine bug, not a network
  or backend issue.

Workaround

Quit opencode completely and relaunch whenever the list gets stuck.
Project files on disk are not affected.

Plugins

No response

OpenCode version

No response

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

No response

Terminal

No response