Create a plan for implementing projects and also create the backend API. (#19)

Creates projects to organize tasks under. (Note the migration also contains the tables for creating folders for projects as well because adding foreign keys is a PITA in sqlite apparently).

Reviewed-on: #19
Co-authored-by: Drew Galbraith <drew@tiramisu.one>
Co-committed-by: Drew Galbraith <drew@tiramisu.one>

backend/src/main.rs

@@ -32,6 +32,7 @@ async fn main() {
     let app = Router::new()
         .route("/health", get(health))
         .nest("/api/tasks", services::create_task_router())
+        .nest("/api/projects", services::create_project_router())
         .layer(cors)
         .with_state(pool);