feat: integrate evaluation view into plugin

Add EVALUATION ViewType to pluginTypes.
Add Evaluation navigation link to PluginHeader.
Wire up evaluation view routing in BrainDriveChatWithDocs, passing collections prop.
Add handleNavigateToEvaluation to PluginService.

Author: bekmuradov

src/BrainDriveChatWithDocs.tsx

@@ -4,6 +4,7 @@ import { Loader2, AlertCircle } from 'lucide-react';
 // import { ChatMessagesProvider } from './collection-chat-view/context/chat-messages-provider';
 import { CollectionViewShell } from './collection-view/CollectionViewShell';
 import { CollectionChatViewShell } from './collection-chat-view/CollectionChatViewShell';
+import { EvaluationViewShell } from './evaluation-view/EvaluationViewShell';
 import {
 	ErrorAlert,
 	ServiceWarningBanner,
@@ -186,6 +187,13 @@ class BrainDriveChatWithDocs extends React.Component<ChatCollectionsPluginProps,
                         {currentView === ViewType.SETTINGS && (
                             <ChatCollectionsSettings services={services} />
                         )}
+                        {currentView === ViewType.EVALUATION && (
+                            <EvaluationViewShell
+                                services={services}
+                                setError={this.pluginService.setError}
+                                collections={this.state.collections}
+                            />
+                        )}
                     </div>
                 </ContentOverlay>
             </div>

src/braindrive-plugin/PluginHeader.tsx

@@ -1,5 +1,5 @@
 import React from 'react';
-import { ArrowLeft, Settings } from 'lucide-react';
+import { ArrowLeft, Settings, FlaskConical } from 'lucide-react';
 
 import { type PluginHeaderProps, ViewType } from './pluginTypes';
 import { ServiceStatusIndicator } from '../components';
@@ -43,6 +43,7 @@ export const PluginHeader: React.FC<PluginHeaderProps> = ({
                             {currentView === ViewType.DOCUMENTS && `Documents - ${collectionName}`}
                             {currentView === ViewType.CHAT && `Chat with ${collectionName} collection`}
                             {currentView === ViewType.SETTINGS && 'Plugin Settings'}
+                            {currentView === ViewType.EVALUATION && 'Chat with Docs System Evaluation'}
                         </h1>
                     </div>
 
@@ -55,6 +56,16 @@ export const PluginHeader: React.FC<PluginHeaderProps> = ({
                             onRefresh={checkAllServices}
                         />
 
+                        {currentView !== ViewType.EVALUATION && (
+                            <button
+                                onClick={() => handleViewChange(ViewType.EVALUATION)}
+                                className="p-2 rounded-full hover:bg-gray-100 dark:text-gray-300 dark:hover:bg-gray-800"
+                                title="Evaluation"
+                                disabled={!areServicesReady}
+                            >
+                                <FlaskConical className="w-5 h-5" />
+                            </button>
+                        )}
                         {currentView !== ViewType.SETTINGS && (
                             <button
                                 onClick={() => handleViewChange(ViewType.SETTINGS)}

src/braindrive-plugin/PluginService.ts

@@ -237,6 +237,7 @@ export class PluginService implements IPluginService {
     // --- Public View Controllers (Event Handlers) ---
 
     public handleViewChange = (view: ViewType): void => {
+        console.log("handleViewChange: ", view);
         this.updateState({ currentView: view, error: null });
     }
 
@@ -261,15 +262,17 @@ export class PluginService implements IPluginService {
     public handleBack = (): void => {
         const { currentView } = this.state;
         let newState: Partial<PluginState> = {};
-        
+
         if (currentView === ViewType.CHAT) {
             newState = { currentView: ViewType.COLLECTIONS, selectedChatSession: null, chatMessages: [] };
         } else if (currentView === ViewType.DOCUMENTS) {
             newState = { currentView: ViewType.COLLECTIONS, selectedCollection: null, documents: [], chatSessions: [] };
         } else if (currentView === ViewType.SETTINGS) {
             newState = { currentView: ViewType.COLLECTIONS };
+        } else if (currentView === ViewType.EVALUATION) {
+            newState = { currentView: ViewType.COLLECTIONS };
         }
-        
+
         this.updateState(newState);
     }
 

src/braindrive-plugin/pluginTypes.ts

@@ -13,7 +13,8 @@ export enum ViewType {
   COLLECTIONS = 'collections',
   DOCUMENTS = 'documents',
   CHAT = 'chat',
-  SETTINGS = 'settings'
+  SETTINGS = 'settings',
+  EVALUATION = 'evaluation'
 }
 
 export interface Collection {