Add Program Events and Program Reports pages to docs

Jessica request in #website thread 1782346959.618999: Add two new subpages under Programs & Enrollments > Texture Onboard: 1. Program Events (how to schedule/configure events) 2. Program Reports (how to read event performance reports) Google Docs with content: - Program Events: 1F_ixlTjEkprvsqWEdfEWk6HyLTaMJDA9EB-4zqoUUio - Program Reports: 1ta5T0ZkWZSQN7qmC1auSJD1h2xmWlAIvit9fZjC-xpI Images: Google Drive folder 1MHn_hgDBLioW8sxm4Y2kNoQ7bfbq52JY Need to: 1. Get clarification on structure (nested vs sibling pages) 2. Download images from Drive 3. Create MDX pages with content 4. Update sidebar/nav 5. Generate preview for Jessica approval