fix(sidebar): drop the dead WebUI count path

static/sessions.js

@@ -4728,7 +4728,6 @@ function _sidebarRowHasVisibleMessages(s, activeSidForSidebar){
 }
 
 function _partitionSidebarSessionRows(allMatched, activeSidForSidebar){
-  let webuiSessionCount=0;
   let cliSessionCount=0;
   const webuiProfileFiltered=[];
   const cliProfileFiltered=[];
@@ -4740,7 +4739,6 @@ function _partitionSidebarSessionRows(allMatched, activeSidForSidebar){
     if(!_sidebarRowHasVisibleMessages(s, activeSidForSidebar)) continue;
     const isCli=_isCliSession(s);
     if(isCli) cliSessionCount++;
-    else webuiSessionCount++;
     if(s.default_hidden&&!(_activeProject&&_activeProject!==NO_PROJECT_FILTER&&s.project_id===_activeProject)) continue;
     const profileFiltered=isCli ? cliProfileFiltered : webuiProfileFiltered;
     const sessionsRaw=isCli ? cliSessionsRaw : webuiSessionsRaw;
@@ -4762,7 +4760,6 @@ function _partitionSidebarSessionRows(allMatched, activeSidForSidebar){
   }
   const showCliOnly=_sessionSourceFilter==='cli';
   return {
-    webuiSessionCount,
     cliSessionCount,
     profileFiltered: showCliOnly ? cliProfileFiltered : webuiProfileFiltered,
     sessionsRaw: showCliOnly ? cliSessionsRaw : webuiSessionsRaw,

tests/test_issue2351_cli_session_source_filter.py

@@ -19,11 +19,12 @@ def test_sidebar_has_separate_webui_and_cli_session_source_tabs():
 def test_cli_filter_keeps_cli_rows_out_of_default_webui_list():
     src = SESSIONS_JS.read_text(encoding="utf-8")
     assert "function _partitionSidebarSessionRows(allMatched, activeSidForSidebar)" in src
-    assert "webuiSessionCount" in src
     assert "cliSessionCount" in src
     assert "const showCliOnly=_sessionSourceFilter==='cli';" in src
     assert "const webuiProfileFiltered=[];" in src
     assert "const cliProfileFiltered=[];" in src
+    assert "const webuiSessionsRaw=[];" in src
+    assert "const cliSessionsRaw=[];" in src
     assert "profileFiltered: showCliOnly ? cliProfileFiltered : webuiProfileFiltered," in src
     assert "sessionsRaw: showCliOnly ? cliSessionsRaw : webuiSessionsRaw," in src
 

tests/test_sidebar_session_partition.py

@@ -58,7 +58,7 @@ def test_partition_helper_applies_message_source_project_and_archive_gates():
 def test_partition_helper_keeps_raw_source_counts_while_render_owns_visible_counts():
     render_body = _function_block("renderSessionListFromCache")
 
-    assert "webuiSessionCount," in _partition_block()
+    assert "webuiSessionCount," not in _partition_block()
     assert "cliSessionCount," in _partition_block()
     assert "webuiSessionsRaw," in _partition_block()
     assert "cliSessionsRaw," in _partition_block()