refactor: Replace PopStyleColor with PopPanelStyle in AgentChatWidget

- Updated multiple rendering functions in AgentChatWidget to replace ImGui::PopStyleColor() with AgentUI::PopPanelStyle(), enhancing consistency in style management.
- Introduced a new StatusBadge function in agent_ui_theme.cc for improved badge rendering with customizable colors, promoting better UI theming.
- Added ButtonColor enum in agent_ui_theme.h to support various badge states, improving code clarity and maintainability.

src/app/editor/agent/agent_chat_widget.cc

@@ -555,7 +555,7 @@ void AgentChatWidget::RenderHistory() {
     }
   }
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
   last_history_size_ = history.size();
 }
 
@@ -1342,7 +1342,7 @@ void AgentChatWidget::RenderCollaborationPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
   ImGui::PopStyleVar(2);
   ImGui::PopID();  // CollabPanel
 }
@@ -1451,7 +1451,7 @@ void AgentChatWidget::RenderMultimodalPanel() {
     ImGui::EndDisabled();
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
   ImGui::PopID();
 }
 
@@ -1667,7 +1667,7 @@ void AgentChatWidget::RenderAgentConfigPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
 }
 
 void AgentChatWidget::RenderZ3EDCommandPanel() {
@@ -1750,7 +1750,7 @@ void AgentChatWidget::RenderZ3EDCommandPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
 
   ImGui::PopID();  // FIX: Pop the Z3EDCmdPanel ID
 }
@@ -1849,7 +1849,7 @@ void AgentChatWidget::RenderRomSyncPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
 }
 
 void AgentChatWidget::RenderSnapshotPreviewPanel() {
@@ -1899,7 +1899,7 @@ void AgentChatWidget::RenderSnapshotPreviewPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
 }
 
 void AgentChatWidget::RenderProposalManagerPanel() {
@@ -2095,7 +2095,7 @@ void AgentChatWidget::RenderHarnessPanel() {
   }
 
   ImGui::EndChild();
-  ImGui::PopStyleColor();
+  AgentUI::PopPanelStyle();
   ImGui::PopID();
 }
 

src/app/editor/agent/agent_ui_theme.cc

@@ -147,6 +147,26 @@ void RenderProviderBadge(const char* provider) {
   ImGui::PopStyleColor();
 }
 
+void StatusBadge(const char* text, ButtonColor color) {
+  const auto& theme = GetTheme();
+  
+  ImVec4 badge_color;
+  switch (color) {
+    case ButtonColor::Success: badge_color = theme.status_success; break;
+    case ButtonColor::Warning: badge_color = theme.status_warning; break;
+    case ButtonColor::Error: badge_color = theme.status_error; break;
+    case ButtonColor::Info: badge_color = theme.accent_color; break;
+    default: badge_color = theme.status_inactive; break;
+  }
+  
+  ImGui::PushStyleColor(ImGuiCol_Button, badge_color);
+  ImGui::PushStyleVar(ImGuiStyleVar_FrameRounding, 10.0f);
+  ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(6, 2));
+  ImGui::SmallButton(text);
+  ImGui::PopStyleVar(2);
+  ImGui::PopStyleColor();
+}
+
 void VerticalSpacing(float amount) {
   ImGui::Dummy(ImVec2(0, amount));
 }

src/app/editor/agent/agent_ui_theme.h

@@ -81,6 +81,10 @@ void RenderSectionHeader(const char* icon, const char* label, const ImVec4& colo
 void RenderStatusIndicator(const char* label, bool active);
 void RenderProviderBadge(const char* provider);
 
+// Status badge for tests/processes
+enum class ButtonColor { Success, Warning, Error, Info, Default };
+void StatusBadge(const char* text, ButtonColor color);
+
 // Spacing helpers
 void VerticalSpacing(float amount = 8.0f);
 void HorizontalSpacing(float amount = 8.0f);