feat: add delete account button in settings, implement all remaining achievements

- Add delete all data button with red danger style and confirmation prompt
- Add DeleteUserData repo method that wipes user from all tables in a transaction
- Add helper methods deleteAccountPrompt and deleteAccountConfirm
- Implement consistency_master, perfect_week, remote_veteran, onsite_master achievements
- Add GetDailyXPInRange and SumWorkSecondsByWorkType repo methods
- Update Dockerfile to alpine3.23, docker-compose to use env vars for proxy/paths

internal/repo/interface.go

@@ -44,6 +44,8 @@ type Repository interface {
 	UpsertDailyXP(userID int64, date string, xpEarned, workSeconds int64) error
 	SetDailyWorkSeconds(userID int64, date string, workSeconds int64) error
 	SumDailyWorkSeconds(userID int64) (int64, error)
+	GetDailyXPInRange(userID int64, start, end string) ([]domain.DailyXP, error)
+	SumWorkSecondsByWorkType(userID int64) (remoteSeconds, onsiteSeconds int64, _ error)
 
 	// Achievements
 	GetAchievementByCode(code string) (*domain.Achievement, error)
@@ -55,5 +57,6 @@ type Repository interface {
 	GetLeagueRankings(orderBy string) ([]domain.LeagueEntry, error)
 
 	// Lifecycle
+	DeleteUserData(userID int64) error
 	Close() error
 }