feat: Enhance hackathon submission and participant management

- Updated HackathonSubmissionsSchema to use Option types for team_id, project_name, description, technologies, submission_status, and submitted_at.
- Modified seed_hackathons and seed_test_submission scripts to accommodate new optional fields.
- Added routes for participant registration and listing in hackathon_controller.
- Implemented register_participant and list_participants functions in hackathon_controller.
- Introduced HackathonParticipantSchema and corresponding DTOs for participant management.
- Enhanced HackathonRepository with CRUD operations for hackathon participants.
- Updated HackathonService to include methods for participant registration and listing.
- Refactored TeamsService to allow admin-level updates and invitations, bypassing leader-only restrictions.
- Added validation for member emails in TeamsCreateRequestDto and TeamInviteRequestDto.

imphnen-backend/src/bin/seed_hackathons.rs

@@ -334,15 +334,15 @@ async fn main() -> Result<(), Box<dyn Error>> {
             id: Thing::from(("app_hackathon_submissions", submission_id.as_str())),
             hackathon_id: Thing::from(("app_hackathons", hackathon_id)),
             judge_feedback: None,
-            team_id: Thing::from(("app_teams", team_id)),
-            project_name: project_name.into(),
-            description: description.into(),
+            team_id: Some(Thing::from(("app_teams", team_id))),
+            project_name: Some(project_name.into()),
+            description: Some(description.into()),
             repository_url,
             demo_url,
             slides_url,
-            technologies,
-            submission_status,
-            submitted_at: DateTime::parse_from_rfc3339(submitted_at)?.with_timezone(&Utc),
+            technologies: Some(technologies),
+            submission_status: Some(submission_status),
+            submitted_at: Some(DateTime::parse_from_rfc3339(submitted_at)?.with_timezone(&Utc)),
             is_deleted: false,
             created_at: Some(get_iso_date()),
             updated_at: Some(get_iso_date()),