chore: update .gitignore and improve coding standards documentation

- Added .cursor/sessions/* to .gitignore to prevent session files from being tracked.
- Enhanced coding standards in SKILL.md by adding semicolons to TypeScript examples for consistency.
- Improved formatting in continuous learning, detail layout, and other SKILL.md files for better readability.

These changes aim to streamline development processes and maintain code quality across the project.

.agents/skills/tdd-workflow/SKILL.md

@@ -38,31 +38,31 @@ TDD for this frontend monorepo (Vitest, not NestJS/Supertest).
 ## Unit example
 
 ```typescript
-import { describe, it, expect } from 'vitest'
-import { createFullPageSchema } from './full-page.validator'
+import { describe, it, expect } from 'vitest';
+import { createFullPageSchema } from './full-page.validator';
 
 describe('createFullPageSchema', () => {
-  const t = (key: string) => key
+  const t = (key: string) => key;
 
   it('rejects an empty code', () => {
-    const result = createFullPageSchema(t).safeParse({ code: '', name: 'Widget' })
-    expect(result.success).toBe(false)
-  })
-})
+    const result = createFullPageSchema(t).safeParse({ code: '', name: 'Widget' });
+    expect(result.success).toBe(false);
+  });
+});
 ```
 
 ## Component example
 
 ```tsx
-import { render, screen } from '@testing-library/react'
-import userEvent from '@testing-library/user-event'
+import { render, screen } from '@testing-library/react';
+import userEvent from '@testing-library/user-event';
 
 it('calls onClick', async () => {
-  const onClick = vi.fn()
-  render(<Button onClick={onClick}>Save</Button>)
-  await userEvent.click(screen.getByRole('button', { name: 'Save' }))
-  expect(onClick).toHaveBeenCalledTimes(1)
-})
+  const onClick = vi.fn();
+  render(<Button onClick={onClick}>Save</Button>);
+  await userEvent.click(screen.getByRole('button', { name: 'Save' }));
+  expect(onClick).toHaveBeenCalledTimes(1);
+});
 ```
 
 ## Mocking
@@ -72,7 +72,7 @@ Mock `@repo/core-api` and `apiClient`, not a database.
 ```ts
 vi.mock('@repo/core-api/http-client', () => ({
   createHttpClient: () => ({ get: vi.fn(), post: vi.fn(), put: vi.fn(), delete: vi.fn() }),
-}))
+}));
 ```
 
 ## File organization