feat(#82): implement Personality Module

- Add Personality model to Prisma schema with FormalityLevel enum
- Create migration and seed with 6 default personalities
- Implement CRUD API with TDD approach (97.67% coverage)
  * PersonalitiesService: findAll, findOne, findDefault, create, update, remove
  * PersonalitiesController: REST endpoints with auth guards
  * Comprehensive test coverage (21 passing tests)
- Add Personality types to shared package
- Create frontend components:
  * PersonalitySelector: dropdown for choosing personality
  * PersonalityPreview: preview personality style and system prompt
  * PersonalityForm: create/edit personalities with validation
  * Settings page: manage personalities with CRUD operations
- Integrate with Ollama API:
  * Support personalityId in chat endpoint
  * Auto-inject system prompt from personality
  * Fall back to default personality if not specified
- API client for frontend personality management

All tests passing with 97.67% backend coverage (exceeds 85% requirement)

apps/web/src/providers/WebSocketProvider.test.tsx

@@ -0,0 +1,122 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, screen } from '@testing-library/react';
+import { WebSocketProvider, useWebSocketContext } from './WebSocketProvider';
+import * as useWebSocketModule from '../hooks/useWebSocket';
+
+// Mock the useWebSocket hook
+vi.mock('../hooks/useWebSocket');
+
+describe('WebSocketProvider', () => {
+  it('should provide WebSocket context to children', () => {
+    const mockUseWebSocket = vi.spyOn(useWebSocketModule, 'useWebSocket');
+    mockUseWebSocket.mockReturnValue({
+      isConnected: true,
+      socket: null,
+    });
+
+    function TestComponent(): React.JSX.Element {
+      const { isConnected } = useWebSocketContext();
+      return <div>{isConnected ? 'Connected' : 'Disconnected'}</div>;
+    }
+
+    render(
+      <WebSocketProvider workspaceId="workspace-123" token="auth-token">
+        <TestComponent />
+      </WebSocketProvider>
+    );
+
+    expect(screen.getByText('Connected')).toBeInTheDocument();
+  });
+
+  it('should pass callbacks to useWebSocket hook', () => {
+    const mockUseWebSocket = vi.spyOn(useWebSocketModule, 'useWebSocket');
+    mockUseWebSocket.mockReturnValue({
+      isConnected: false,
+      socket: null,
+    });
+
+    const onTaskCreated = vi.fn();
+    const onTaskUpdated = vi.fn();
+    const onTaskDeleted = vi.fn();
+
+    render(
+      <WebSocketProvider
+        workspaceId="workspace-123"
+        token="auth-token"
+        onTaskCreated={onTaskCreated}
+        onTaskUpdated={onTaskUpdated}
+        onTaskDeleted={onTaskDeleted}
+      >
+        <div>Test</div>
+      </WebSocketProvider>
+    );
+
+    expect(mockUseWebSocket).toHaveBeenCalledWith(
+      'workspace-123',
+      'auth-token',
+      {
+        onTaskCreated,
+        onTaskUpdated,
+        onTaskDeleted,
+        onEventCreated: undefined,
+        onEventUpdated: undefined,
+        onEventDeleted: undefined,
+        onProjectUpdated: undefined,
+      }
+    );
+  });
+
+  it('should throw error when useWebSocketContext is used outside provider', () => {
+    function TestComponent(): React.JSX.Element {
+      useWebSocketContext();
+      return <div>Test</div>;
+    }
+
+    // Suppress console.error for this test
+    const originalError = console.error;
+    console.error = vi.fn();
+
+    expect(() => {
+      render(<TestComponent />);
+    }).toThrow('useWebSocketContext must be used within WebSocketProvider');
+
+    console.error = originalError;
+  });
+
+  it('should update context when connection status changes', () => {
+    const mockUseWebSocket = vi.spyOn(useWebSocketModule, 'useWebSocket');
+    
+    // Initially disconnected
+    mockUseWebSocket.mockReturnValue({
+      isConnected: false,
+      socket: null,
+    });
+
+    function TestComponent(): React.JSX.Element {
+      const { isConnected } = useWebSocketContext();
+      return <div data-testid="status">{isConnected ? 'Connected' : 'Disconnected'}</div>;
+    }
+
+    const { rerender } = render(
+      <WebSocketProvider workspaceId="workspace-123" token="auth-token">
+        <TestComponent />
+      </WebSocketProvider>
+    );
+
+    expect(screen.getByTestId('status')).toHaveTextContent('Disconnected');
+
+    // Update to connected
+    mockUseWebSocket.mockReturnValue({
+      isConnected: true,
+      socket: null,
+    });
+
+    rerender(
+      <WebSocketProvider workspaceId="workspace-123" token="auth-token">
+        <TestComponent />
+      </WebSocketProvider>
+    );
+
+    expect(screen.getByTestId('status')).toHaveTextContent('Connected');
+  });
+});

apps/web/src/providers/WebSocketProvider.tsx

@@ -0,0 +1,94 @@
+import React, { createContext, useContext, ReactNode } from 'react';
+import { useWebSocket } from '../hooks/useWebSocket';
+import { Socket } from 'socket.io-client';
+
+interface Task {
+  id: string;
+  [key: string]: unknown;
+}
+
+interface Event {
+  id: string;
+  [key: string]: unknown;
+}
+
+interface Project {
+  id: string;
+  [key: string]: unknown;
+}
+
+interface DeletePayload {
+  id: string;
+}
+
+interface WebSocketContextValue {
+  isConnected: boolean;
+  socket: Socket | null;
+}
+
+interface WebSocketProviderProps {
+  workspaceId: string;
+  token: string;
+  onTaskCreated?: (task: Task) => void;
+  onTaskUpdated?: (task: Task) => void;
+  onTaskDeleted?: (payload: DeletePayload) => void;
+  onEventCreated?: (event: Event) => void;
+  onEventUpdated?: (event: Event) => void;
+  onEventDeleted?: (payload: DeletePayload) => void;
+  onProjectUpdated?: (project: Project) => void;
+  children: ReactNode;
+}
+
+const WebSocketContext = createContext<WebSocketContextValue | undefined>(undefined);
+
+/**
+ * WebSocket Provider component
+ * Manages WebSocket connection and provides context to children
+ */
+export function WebSocketProvider({
+  workspaceId,
+  token,
+  onTaskCreated,
+  onTaskUpdated,
+  onTaskDeleted,
+  onEventCreated,
+  onEventUpdated,
+  onEventDeleted,
+  onProjectUpdated,
+  children,
+}: WebSocketProviderProps): React.JSX.Element {
+  const { isConnected, socket } = useWebSocket(workspaceId, token, {
+    onTaskCreated: onTaskCreated ?? undefined,
+    onTaskUpdated: onTaskUpdated ?? undefined,
+    onTaskDeleted: onTaskDeleted ?? undefined,
+    onEventCreated: onEventCreated ?? undefined,
+    onEventUpdated: onEventUpdated ?? undefined,
+    onEventDeleted: onEventDeleted ?? undefined,
+    onProjectUpdated: onProjectUpdated ?? undefined,
+  });
+
+  const value: WebSocketContextValue = {
+    isConnected,
+    socket,
+  };
+
+  return (
+    <WebSocketContext.Provider value={value}>
+      {children}
+    </WebSocketContext.Provider>
+  );
+}
+
+/**
+ * Hook to access WebSocket context
+ * @throws Error if used outside WebSocketProvider
+ */
+export function useWebSocketContext(): WebSocketContextValue {
+  const context = useContext(WebSocketContext);
+  
+  if (context === undefined) {
+    throw new Error('useWebSocketContext must be used within WebSocketProvider');
+  }
+  
+  return context;
+}