fix: correct session project and rebuild CentOS 7 release

public/app.js

@@ -2294,11 +2294,14 @@
 
   function mergeSessionListSnapshot(snapshot) {
     if (!snapshot?.sessionId) return;
+    const hasSnapshotCwd = Object.prototype.hasOwnProperty.call(snapshot, 'cwd');
+    const snapshotCwd = hasSnapshotCwd ? String(snapshot.cwd || '').trim() : '';
+    const snapshotProjectName = String(snapshot.projectName || '').trim();
     const nextMeta = {
       id: snapshot.sessionId,
       sessionId: snapshot.sessionId,
-      cwd: snapshot.cwd || '',
-      projectName: snapshot.cwd ? getPathLeaf(snapshot.cwd) : snapshot.projectName || '',
+      cwd: hasSnapshotCwd ? snapshotCwd : '',
+      projectName: hasSnapshotCwd ? (snapshotCwd ? getPathLeaf(snapshotCwd) : '') : snapshotProjectName,
       title: snapshot.title || '新会话',
       agent: normalizeAgent(snapshot.agent),
       updated: snapshot.updated || new Date().toISOString(),
@@ -2322,8 +2325,12 @@
       return {
         ...session,
         ...nextMeta,
-        cwd: nextMeta.cwd || session.cwd || '',
-        projectName: nextMeta.cwd ? getPathLeaf(nextMeta.cwd) : session.projectName || nextMeta.projectName || '',
+        // 服务端显式传空 cwd 代表项目归属已清除，不能再沿用旧项目名；
+        // 只有完全未提供 cwd 时，才保留缓存中的路径作为兼容降级。
+        cwd: hasSnapshotCwd ? nextMeta.cwd : session.cwd || '',
+        projectName: hasSnapshotCwd
+          ? nextMeta.projectName
+          : nextMeta.projectName || session.projectName || (session.cwd ? getPathLeaf(session.cwd) : ''),
         title: nextMeta.title || session.title,
         titleSource: nextMeta.titleSource || session.titleSource || null,
         createdFromKind: nextMeta.createdFromKind || session.createdFromKind || null,