graph TD
A[app.py] --> B[templates/]
B --> C[layout.html]
B --> D[index.html]
B --> E[login.html]
B --> F[register.html]
B --> G[profile.html]
B --> H[edit_profile.html]
B --> I[404.html]
A --> J[users.db]
A --> K[app.log]
A --> L[static/]
L --> M[css/]
L --> N[js/]
L --> O[images/]
A --> P[routes/]
P --> Q[auth.py]
P --> R[profile.py]
P --> S[main.py]
A --> T[models/]
T --> U[user.py]
T --> V[appointment.py]