feat: implement account deactivation, deletion (14-day), and immediate destroy with email confirmation

go-backend/cmd/api/main.go

@@ -160,6 +160,8 @@ func main() {
 
 	adminHandler := handlers.NewAdminHandler(dbPool, moderationService, appealService, emailService, openRouterService, cfg.JWTSecret, cfg.TurnstileSecretKey, s3Client, cfg.R2MediaBucket, cfg.R2VideoBucket, cfg.R2ImgDomain, cfg.R2VidDomain)
 
+	accountHandler := handlers.NewAccountHandler(userRepo, emailService, cfg)
+
 	mediaHandler := handlers.NewMediaHandler(
 		s3Client,
 		cfg.R2AccountID,
@@ -360,6 +362,16 @@ func main() {
 			authorized.DELETE("/notifications/device", notificationHandler.UnregisterDevice)
 			authorized.DELETE("/notifications/devices", notificationHandler.UnregisterAllDevices)
 
+			// Account Lifecycle routes
+			account := authorized.Group("/account")
+			{
+				account.GET("/status", accountHandler.GetAccountStatus)
+				account.POST("/deactivate", accountHandler.DeactivateAccount)
+				account.DELETE("", accountHandler.DeleteAccount)
+				account.POST("/cancel-deletion", accountHandler.CancelDeletion)
+				account.POST("/destroy", accountHandler.RequestImmediateDestroy)
+			}
+
 			// Appeal System routes
 			appeals := authorized.Group("/appeals")
 			{
@@ -457,6 +469,9 @@ func main() {
 	// Public claim request endpoint (no auth)
 	r.POST("/api/v1/username-claim", adminHandler.SubmitClaimRequest)
 
+	// Account destroy confirmation (accessed via email link, no auth)
+	r.GET("/api/v1/account/destroy/confirm", accountHandler.ConfirmImmediateDestroy)
+
 	srv := &http.Server{
 		Addr:    ":" + cfg.Port,
 		Handler: r,
@@ -468,6 +483,27 @@ func main() {
 		}
 	}()
 
+	// Background job: purge accounts past 14-day deletion window (runs every hour)
+	go func() {
+		ticker := time.NewTicker(1 * time.Hour)
+		defer ticker.Stop()
+		for range ticker.C {
+			ids, err := userRepo.GetAccountsPendingPurge(context.Background())
+			if err != nil {
+				log.Error().Err(err).Msg("[Purge] Failed to fetch accounts pending purge")
+				continue
+			}
+			for _, id := range ids {
+				log.Warn().Str("user_id", id).Msg("[Purge] Auto-purging account past 14-day grace period")
+				if err := userRepo.CascadePurgeUser(context.Background(), id); err != nil {
+					log.Error().Err(err).Str("user_id", id).Msg("[Purge] FAILED to purge account")
+				} else {
+					log.Info().Str("user_id", id).Msg("[Purge] Account permanently destroyed")
+				}
+			}
+		}
+	}()
+
 	log.Info().Msgf("Server started on port %s", cfg.Port)
 
 	quit := make(chan os.Signal, 1)

go-backend/internal/handlers/account_handler.go

@@ -0,0 +1,306 @@
+package handlers
+
+import (
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/hex"
+	"fmt"
+	"net/http"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/patbritton/sojorn-backend/internal/config"
+	"github.com/patbritton/sojorn-backend/internal/repository"
+	"github.com/patbritton/sojorn-backend/internal/services"
+	"github.com/rs/zerolog/log"
+)
+
+type AccountHandler struct {
+	repo         *repository.UserRepository
+	emailService *services.EmailService
+	config       *config.Config
+}
+
+func NewAccountHandler(repo *repository.UserRepository, emailService *services.EmailService, cfg *config.Config) *AccountHandler {
+	return &AccountHandler{repo: repo, emailService: emailService, config: cfg}
+}
+
+// DeactivateAccount sets the user's status to deactivated.
+// All data is preserved indefinitely. User can reactivate by logging in.
+func (h *AccountHandler) DeactivateAccount(c *gin.Context) {
+	userIDStr, _ := c.Get("user_id")
+	userID := userIDStr.(string)
+
+	user, err := h.repo.GetUserByID(c.Request.Context(), userID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get account"})
+		return
+	}
+
+	if user.Status == "deactivated" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Account is already deactivated"})
+		return
+	}
+
+	if err := h.repo.DeactivateUser(c.Request.Context(), userID); err != nil {
+		log.Error().Err(err).Str("user_id", userID).Msg("Failed to deactivate account")
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to deactivate account"})
+		return
+	}
+
+	// Revoke all tokens so they're logged out everywhere
+	_ = h.repo.RevokeAllUserTokens(c.Request.Context(), userID)
+
+	log.Info().Str("user_id", userID).Msg("Account deactivated")
+	c.JSON(http.StatusOK, gin.H{
+		"message": "Your account has been deactivated. All your data is preserved. You can reactivate at any time by logging back in.",
+		"status":  "deactivated",
+	})
+}
+
+// DeleteAccount schedules the account for deletion after 14 days.
+// During the grace period, the user can cancel by logging back in.
+func (h *AccountHandler) DeleteAccount(c *gin.Context) {
+	userIDStr, _ := c.Get("user_id")
+	userID := userIDStr.(string)
+
+	if err := h.repo.ScheduleDeletion(c.Request.Context(), userID); err != nil {
+		log.Error().Err(err).Str("user_id", userID).Msg("Failed to schedule account deletion")
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to schedule deletion"})
+		return
+	}
+
+	// Revoke all tokens
+	_ = h.repo.RevokeAllUserTokens(c.Request.Context(), userID)
+
+	deletionDate := time.Now().Add(14 * 24 * time.Hour).Format("January 2, 2006")
+
+	log.Info().Str("user_id", userID).Msg("Account scheduled for deletion in 14 days")
+	c.JSON(http.StatusOK, gin.H{
+		"message":       fmt.Sprintf("Your account is scheduled for permanent deletion on %s. Log back in before then to cancel. After that date, all data will be irreversibly destroyed.", deletionDate),
+		"status":        "pending_deletion",
+		"deletion_date": deletionDate,
+	})
+}
+
+// RequestImmediateDestroy initiates the super-delete flow.
+// Sends a confirmation email with a one-time token. Nothing is deleted yet.
+func (h *AccountHandler) RequestImmediateDestroy(c *gin.Context) {
+	userIDStr, _ := c.Get("user_id")
+	userID := userIDStr.(string)
+
+	user, err := h.repo.GetUserByID(c.Request.Context(), userID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get account"})
+		return
+	}
+
+	profile, _ := h.repo.GetProfileByID(c.Request.Context(), userID)
+	displayName := "there"
+	if profile != nil && profile.DisplayName != nil {
+		displayName = *profile.DisplayName
+	}
+
+	// Generate a secure one-time token
+	rawToken, err := generateDestroyToken()
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to generate confirmation token"})
+		return
+	}
+
+	hash := sha256.Sum256([]byte(rawToken))
+	hashString := hex.EncodeToString(hash[:])
+
+	// Store as auth_token with type 'destroy_confirm', expires in 1 hour
+	if err := h.repo.CreateVerificationToken(c.Request.Context(), hashString, userID, 1*time.Hour); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to store confirmation token"})
+		return
+	}
+
+	// Send the confirmation email with strong language
+	go func() {
+		if err := h.sendDestroyConfirmationEmail(user.Email, displayName, rawToken); err != nil {
+			log.Error().Err(err).Str("user_id", userID).Msg("Failed to send destroy confirmation email")
+		}
+	}()
+
+	log.Warn().Str("user_id", userID).Msg("Immediate destroy requested — confirmation email sent")
+	c.JSON(http.StatusOK, gin.H{
+		"message": "A confirmation email has been sent. You must click the link in that email to permanently and immediately destroy your account. This action cannot be undone.",
+	})
+}
+
+// ConfirmImmediateDestroy is the endpoint hit from the email confirmation link.
+// It verifies the token and permanently purges all user data.
+func (h *AccountHandler) ConfirmImmediateDestroy(c *gin.Context) {
+	token := c.Query("token")
+	if token == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Missing confirmation token"})
+		return
+	}
+
+	hash := sha256.Sum256([]byte(token))
+	hashString := hex.EncodeToString(hash[:])
+
+	userID, expiresAt, err := h.repo.GetVerificationToken(c.Request.Context(), hashString)
+	if err != nil {
+		c.Redirect(http.StatusFound, h.config.AppBaseURL+"/verify-error?reason=invalid")
+		return
+	}
+
+	if time.Now().After(expiresAt) {
+		_ = h.repo.DeleteVerificationToken(c.Request.Context(), hashString)
+		c.Redirect(http.StatusFound, h.config.AppBaseURL+"/verify-error?reason=expired")
+		return
+	}
+
+	// Clean up the token
+	_ = h.repo.DeleteVerificationToken(c.Request.Context(), hashString)
+
+	// Revoke all tokens first
+	_ = h.repo.RevokeAllUserTokens(c.Request.Context(), userID)
+
+	// CASCADE PURGE — point of no return
+	if err := h.repo.CascadePurgeUser(c.Request.Context(), userID); err != nil {
+		log.Error().Err(err).Str("user_id", userID).Msg("CRITICAL: Cascade purge failed")
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Account destruction failed. Please contact support."})
+		return
+	}
+
+	log.Warn().Str("user_id", userID).Msg("ACCOUNT DESTROYED — all data permanently purged")
+
+	// Return a simple HTML goodbye page (this is accessed via browser from email link)
+	c.Data(http.StatusOK, "text/html; charset=utf-8", []byte(`<!DOCTYPE html>
+<html><head><meta charset="utf-8"><title>Account Destroyed</title>
+<style>body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;background:#1a1a2e;color:#e0e0e0;display:flex;align-items:center;justify-content:center;min-height:100vh;margin:0;}
+.card{max-width:480px;background:#16213e;border-radius:16px;padding:48px;text-align:center;}
+h1{color:#dc2626;font-size:24px;}p{line-height:1.6;color:#a0a0b0;}</style></head>
+<body><div class="card"><h1>Account Destroyed</h1>
+<p>Your account and all associated data have been permanently destroyed. This action cannot be undone.</p>
+<p style="margin-top:32px;color:#666;">Goodbye. — Sojorn</p></div></body></html>`))
+}
+
+// GetAccountStatus returns the current account lifecycle status
+func (h *AccountHandler) GetAccountStatus(c *gin.Context) {
+	userIDStr, _ := c.Get("user_id")
+	userID := userIDStr.(string)
+
+	user, err := h.repo.GetUserByID(c.Request.Context(), userID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get account"})
+		return
+	}
+
+	result := gin.H{
+		"status": user.Status,
+	}
+
+	if user.DeletedAt != nil {
+		result["deletion_scheduled"] = user.DeletedAt.Format(time.RFC3339)
+	}
+
+	c.JSON(http.StatusOK, result)
+}
+
+// CancelDeletion allows a user to cancel a pending deletion
+func (h *AccountHandler) CancelDeletion(c *gin.Context) {
+	userIDStr, _ := c.Get("user_id")
+	userID := userIDStr.(string)
+
+	user, err := h.repo.GetUserByID(c.Request.Context(), userID)
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to get account"})
+		return
+	}
+
+	if string(user.Status) != "pending_deletion" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Account is not pending deletion"})
+		return
+	}
+
+	if err := h.repo.CancelDeletion(c.Request.Context(), userID); err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Failed to cancel deletion"})
+		return
+	}
+
+	log.Info().Str("user_id", userID).Msg("Account deletion cancelled, reactivated")
+	c.JSON(http.StatusOK, gin.H{
+		"message": "Deletion cancelled. Your account is active again.",
+		"status":  "active",
+	})
+}
+
+// --- helpers ---
+
+func generateDestroyToken() (string, error) {
+	b := make([]byte, 32)
+	if _, err := rand.Read(b); err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(b), nil
+}
+
+func (h *AccountHandler) sendDestroyConfirmationEmail(toEmail, toName, token string) error {
+	subject := "FINAL WARNING: Confirm Permanent Account Destruction"
+
+	confirmURL := fmt.Sprintf("%s/api/v1/account/destroy/confirm?token=%s",
+		h.config.APIBaseURL, token)
+
+	htmlBody := fmt.Sprintf(`<!DOCTYPE html>
+<html>
+<head><meta charset="utf-8"></head>
+<body style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: #1a1a2e; color: #e0e0e0; padding: 40px;">
+<div style="max-width: 560px; margin: 0 auto; background: #16213e; border-radius: 16px; padding: 40px; border: 2px solid #dc2626;">
+
+<h1 style="color: #dc2626; font-size: 24px; margin: 0 0 24px 0;">⚠ Account Destruction Confirmation</h1>
+
+<p style="font-size: 16px; line-height: 1.6;">Hey %s,</p>
+
+<p style="font-size: 16px; line-height: 1.6;">You requested <strong>immediate and permanent destruction</strong> of your Sojorn account.</p>
+
+<div style="background: #2d0000; border: 1px solid #dc2626; border-radius: 12px; padding: 20px; margin: 24px 0;">
+<p style="color: #fca5a5; font-size: 14px; font-weight: bold; margin: 0 0 8px 0;">THIS ACTION IS IRREVERSIBLE</p>
+<ul style="color: #fca5a5; font-size: 14px; margin: 0; padding-left: 20px; line-height: 1.8;">
+<li>All your posts, comments, and media will be permanently deleted</li>
+<li>All your messages and encryption keys will be destroyed</li>
+<li>Your profile, followers, and social connections will be erased</li>
+<li>Your handle will be released and cannot be reclaimed</li>
+<li><strong>There is no recovery. No backup. No undo.</strong></li>
+</ul>
+</div>
+
+<p style="font-size: 16px; line-height: 1.6;">If you are absolutely certain, click the button below. <strong>Your account will be destroyed the instant you click.</strong></p>
+
+<div style="text-align: center; margin: 32px 0;">
+<a href="%s" style="background: #dc2626; color: white; padding: 16px 40px; border-radius: 8px; text-decoration: none; font-weight: bold; font-size: 16px; display: inline-block;">PERMANENTLY DESTROY MY ACCOUNT</a>
+</div>
+
+<p style="font-size: 13px; color: #888; line-height: 1.6;">This link expires in 1 hour. If you did not request this, you can safely ignore this email — your account will not be affected.</p>
+
+<hr style="border: none; border-top: 1px solid #333; margin: 32px 0;">
+<p style="font-size: 12px; color: #666; text-align: center;">MPLS LLC &middot; Sojorn &middot; Minneapolis, MN</p>
+</div>
+</body>
+</html>`, toName, confirmURL)
+
+	textBody := fmt.Sprintf(`FINAL WARNING: Confirm Permanent Account Destruction
+
+Hey %s,
+
+You requested IMMEDIATE AND PERMANENT DESTRUCTION of your Sojorn account.
+
+THIS ACTION IS IRREVERSIBLE:
+- All posts, comments, and media permanently deleted
+- All messages and encryption keys destroyed
+- Profile, followers, and connections erased
+- Handle released and cannot be reclaimed
+- THERE IS NO RECOVERY. NO BACKUP. NO UNDO.
+
+To confirm, visit: %s
+
+This link expires in 1 hour. If you did not request this, ignore this email.
+
+MPLS LLC - Sojorn - Minneapolis, MN`, toName, confirmURL)
+
+	return h.emailService.SendGenericEmail(toEmail, toName, subject, htmlBody, textBody)
+}

go-backend/internal/handlers/auth_handler.go

@@ -267,9 +267,12 @@ func (h *AuthHandler) Login(c *gin.Context) {
 		c.JSON(http.StatusForbidden, gin.H{"error": "Your account is temporarily suspended. Please try again later.", "code": "suspended"})
 		return
 	}
-	if user.Status == models.UserStatusDeactivated {
+
-		c.JSON(http.StatusForbidden, gin.H{"error": "Account deactivated"})
+	// Auto-reactivate deactivated or pending-deletion accounts on login
-		return
+	if user.Status == models.UserStatusDeactivated || user.Status == models.UserStatusPendingDeletion {
+		log.Printf("[Auth] Reactivating %s account for %s", user.Status, req.Email)
+		_ = h.repo.ReactivateUser(c.Request.Context(), user.ID.String())
+		user.Status = models.UserStatusActive
 	}
 
 	if user.MFAEnabled {

go-backend/internal/models/user.go

@@ -9,11 +9,12 @@ import (
 type UserStatus string
 
 const (
-	UserStatusPending     UserStatus = "pending"
+	UserStatusPending         UserStatus = "pending"
-	UserStatusActive      UserStatus = "active"
+	UserStatusActive          UserStatus = "active"
-	UserStatusDeactivated UserStatus = "deactivated"
+	UserStatusDeactivated     UserStatus = "deactivated"
-	UserStatusBanned      UserStatus = "banned"
+	UserStatusPendingDeletion UserStatus = "pending_deletion"
-	UserStatusSuspended   UserStatus = "suspended"
+	UserStatusBanned          UserStatus = "banned"
+	UserStatusSuspended       UserStatus = "suspended"
 )
 
 type User struct {

go-backend/internal/repository/user_repository.go

@@ -1328,3 +1328,166 @@ func (r *UserRepository) IsIPBanned(ctx context.Context, ipAddress string) (bool
 	`, ipAddress).Scan(&exists)
 	return exists, err
 }
+
+// ========================================================================
+// Account Lifecycle: Deactivate, Delete, Destroy
+// ========================================================================
+
+// DeactivateUser sets user status to deactivated, preserves all data
+func (r *UserRepository) DeactivateUser(ctx context.Context, userID string) error {
+	_, err := r.pool.Exec(ctx, `
+		UPDATE public.users 
+		SET status = 'deactivated', updated_at = NOW() 
+		WHERE id = $1::uuid
+	`, userID)
+	return err
+}
+
+// ReactivateUser sets a deactivated user back to active
+func (r *UserRepository) ReactivateUser(ctx context.Context, userID string) error {
+	_, err := r.pool.Exec(ctx, `
+		UPDATE public.users 
+		SET status = 'active', deleted_at = NULL, updated_at = NOW() 
+		WHERE id = $1::uuid AND status IN ('deactivated', 'pending_deletion')
+	`, userID)
+	return err
+}
+
+// ScheduleDeletion marks account for deletion after 14 days
+func (r *UserRepository) ScheduleDeletion(ctx context.Context, userID string) error {
+	_, err := r.pool.Exec(ctx, `
+		UPDATE public.users 
+		SET status = 'pending_deletion', deleted_at = NOW() + INTERVAL '14 days', updated_at = NOW() 
+		WHERE id = $1::uuid
+	`, userID)
+	return err
+}
+
+// CancelDeletion reverts a pending deletion back to active
+func (r *UserRepository) CancelDeletion(ctx context.Context, userID string) error {
+	return r.ReactivateUser(ctx, userID)
+}
+
+// GetAccountsPendingPurge returns user IDs whose deletion grace period has expired
+func (r *UserRepository) GetAccountsPendingPurge(ctx context.Context) ([]string, error) {
+	rows, err := r.pool.Query(ctx, `
+		SELECT id::text FROM public.users 
+		WHERE status = 'pending_deletion' AND deleted_at IS NOT NULL AND deleted_at <= NOW()
+	`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var ids []string
+	for rows.Next() {
+		var id string
+		if err := rows.Scan(&id); err != nil {
+			return nil, err
+		}
+		ids = append(ids, id)
+	}
+	return ids, nil
+}
+
+// CascadePurgeUser permanently deletes ALL user data from every table. Irreversible.
+func (r *UserRepository) CascadePurgeUser(ctx context.Context, userID string) error {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return fmt.Errorf("begin tx: %w", err)
+	}
+	defer tx.Rollback(ctx)
+
+	// Order matters: delete from leaf tables first, then parent tables
+	purgeQueries := []string{
+		// Post-related (leaf tables first)
+		`DELETE FROM public.post_reactions WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_likes WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_saves WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_mentions WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_interactions WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_metrics WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_hashtags WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		`DELETE FROM public.post_categories WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		// Also remove this user's likes/saves/reactions on OTHER people's posts
+		`DELETE FROM public.post_reactions WHERE user_id = $1::uuid`,
+		`DELETE FROM public.post_likes WHERE user_id = $1::uuid`,
+		`DELETE FROM public.post_saves WHERE user_id = $1::uuid`,
+		`DELETE FROM public.post_interactions WHERE user_id = $1::uuid`,
+		// Beacon votes
+		`DELETE FROM public.beacon_votes WHERE user_id = $1::uuid`,
+		// Comments on user's posts
+		`DELETE FROM public.comments WHERE post_id IN (SELECT id FROM public.posts WHERE author_id = $1::uuid)`,
+		// User's own comments
+		`DELETE FROM public.comments WHERE author_id = $1::uuid`,
+		// Feed engagement
+		`DELETE FROM public.feed_engagement WHERE user_id = $1::uuid`,
+		// Posts themselves
+		`DELETE FROM public.posts WHERE author_id = $1::uuid`,
+		// Messaging / E2EE
+		`DELETE FROM public.secure_messages WHERE sender_id = $1::uuid OR receiver_id = $1::uuid`,
+		`DELETE FROM public.encrypted_messages WHERE sender_id = $1::uuid OR receiver_id = $1::uuid`,
+		`DELETE FROM public.e2ee_session_state WHERE session_id IN (SELECT id FROM public.e2ee_sessions WHERE user_a = $1::uuid OR user_b = $1::uuid)`,
+		`DELETE FROM public.e2ee_sessions WHERE user_a = $1::uuid OR user_b = $1::uuid`,
+		`DELETE FROM public.encrypted_conversations WHERE participant_a = $1::uuid OR participant_b = $1::uuid`,
+		// Signal keys
+		`DELETE FROM public.one_time_prekeys WHERE user_id = $1::uuid`,
+		`DELETE FROM public.signed_prekeys WHERE user_id = $1::uuid`,
+		`DELETE FROM public.signal_keys WHERE user_id = $1::uuid`,
+		// Social graph
+		`DELETE FROM public.circle_members WHERE user_id = $1::uuid OR member_id = $1::uuid`,
+		`DELETE FROM public.follows WHERE follower_id = $1::uuid OR following_id = $1::uuid`,
+		`DELETE FROM public.blocks WHERE blocker_id = $1::uuid OR blocked_id = $1::uuid`,
+		// Notifications
+		`DELETE FROM public.notifications WHERE user_id = $1::uuid OR actor_id = $1::uuid`,
+		`DELETE FROM public.notification_preferences WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_fcm_tokens WHERE user_id = $1::uuid`,
+		// Moderation & violations
+		`DELETE FROM public.moderation_flags WHERE user_id = $1::uuid`,
+		`DELETE FROM public.pending_moderation WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_violation_history WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_violations WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_appeals WHERE user_id = $1::uuid`,
+		`DELETE FROM public.content_strikes WHERE user_id = $1::uuid`,
+		`DELETE FROM public.reports WHERE reporter_id = $1::uuid`,
+		`DELETE FROM public.abuse_logs WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_status_history WHERE user_id = $1::uuid`,
+		// Categories & hashtags
+		`DELETE FROM public.user_category_preferences WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_category_settings WHERE user_id = $1::uuid`,
+		`DELETE FROM public.hashtag_follows WHERE user_id = $1::uuid`,
+		// Backup & recovery
+		`DELETE FROM public.recovery_shard_submissions WHERE session_id IN (SELECT id FROM public.recovery_sessions WHERE user_id = $1::uuid)`,
+		`DELETE FROM public.recovery_sessions WHERE user_id = $1::uuid`,
+		`DELETE FROM public.recovery_guardians WHERE user_id = $1::uuid OR guardian_id = $1::uuid`,
+		`DELETE FROM public.cloud_backups WHERE user_id = $1::uuid`,
+		`DELETE FROM public.backup_preferences WHERE user_id = $1::uuid`,
+		`DELETE FROM public.sync_codes WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_devices WHERE user_id = $1::uuid`,
+		// Auth & tokens
+		`DELETE FROM public.auth_tokens WHERE user_id = $1::uuid`,
+		`DELETE FROM public.refresh_tokens WHERE user_id = $1::uuid`,
+		`DELETE FROM public.verification_tokens WHERE user_id = $1::uuid`,
+		`DELETE FROM public.password_reset_tokens WHERE user_id = $1::uuid`,
+		`DELETE FROM public.webauthn_credentials WHERE user_id = $1::uuid`,
+		`DELETE FROM public.user_mfa_secrets WHERE user_id = $1::uuid`,
+		// Settings
+		`DELETE FROM public.user_settings WHERE user_id = $1::uuid`,
+		`DELETE FROM public.profile_privacy_settings WHERE user_id = $1::uuid`,
+		// Trust
+		`DELETE FROM public.trust_state WHERE user_id = $1::uuid`,
+		// Username claims
+		`DELETE FROM public.username_claim_requests WHERE user_id = $1::uuid`,
+		// Profile & user (last)
+		`DELETE FROM public.profiles WHERE id = $1::uuid`,
+		`DELETE FROM public.users WHERE id = $1::uuid`,
+	}
+
+	for _, q := range purgeQueries {
+		if _, err := tx.Exec(ctx, q, userID); err != nil {
+			return fmt.Errorf("purge query failed: %s: %w", q[:60], err)
+		}
+	}
+
+	return tx.Commit(ctx)
+}

go-backend/internal/services/email_service.go

@@ -361,6 +361,11 @@ func (s *EmailService) SendAccountRestoredEmail(toEmail, toName, reason string)
 	return s.sendEmail(toEmail, toName, subject, htmlBody, textBody)
 }
 
+// SendGenericEmail sends an email with pre-built HTML and text bodies
+func (s *EmailService) SendGenericEmail(toEmail, toName, subject, htmlBody, textBody string) error {
+	return s.sendEmail(toEmail, toName, subject, htmlBody, textBody)
+}
+
 func (s *EmailService) AddSubscriber(email, name string) {
 	// SendPulse Addressbook API implementation omitted for brevity, focusing on email first
 	// Endpoint: POST /addressbooks/{id}/emails

sojorn_app/lib/screens/profile/profile_settings_screen.dart

@@ -97,9 +97,21 @@ class _ProfileSettingsScreenState extends ConsumerState<ProfileSettingsScreen> {
                        ),
                        _buildEditTile(
                          icon: Icons.pause_circle_outline,
-                         title: 'Deactivation',
+                         title: 'Deactivate Account',
                          color: Colors.orange,
-                         onTap: () {},
+                         onTap: () => _showDeactivateDialog(),
+                       ),
+                       _buildEditTile(
+                         icon: Icons.delete_outline,
+                         title: 'Delete Account',
+                         color: Colors.red.shade400,
+                         onTap: () => _showDeleteDialog(),
+                       ),
+                       _buildEditTile(
+                         icon: Icons.warning_amber_rounded,
+                         title: 'Immediate Destroy',
+                         color: Colors.red.shade800,
+                         onTap: () => _showSuperDeleteDialog(),
                        ),
                      ],
                    ),
@@ -672,6 +684,196 @@ class _ProfileSettingsScreenState extends ConsumerState<ProfileSettingsScreen> {
     }
   }
 
+  // --- Account Lifecycle Dialogs ---
+
+  void _showDeactivateDialog() {
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: Row(
+          children: [
+            Icon(Icons.pause_circle_outline, color: Colors.orange, size: 24),
+            const SizedBox(width: 8),
+            const Text('Deactivate Account'),
+          ],
+        ),
+        content: const Text(
+          'Your account will be hidden and you will be logged out. '
+          'All your data — posts, messages, connections — will be preserved indefinitely.\n\n'
+          'You can reactivate at any time simply by logging back in.',
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () async {
+              Navigator.pop(ctx);
+              await _performDeactivation();
+            },
+            style: TextButton.styleFrom(foregroundColor: Colors.orange),
+            child: const Text('Deactivate'),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _showDeleteDialog() {
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: Row(
+          children: [
+            Icon(Icons.delete_outline, color: Colors.red.shade400, size: 24),
+            const SizedBox(width: 8),
+            const Text('Delete Account'),
+          ],
+        ),
+        content: const Text(
+          'Your account will be deactivated immediately and permanently deleted after 14 days.\n\n'
+          'During those 14 days, you can cancel the deletion by logging back in. '
+          'After that, ALL data will be irreversibly destroyed — posts, messages, encryption keys, profile, everything.\n\n'
+          'Are you sure you want to proceed?',
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () async {
+              Navigator.pop(ctx);
+              await _performDeletion();
+            },
+            style: TextButton.styleFrom(foregroundColor: Colors.red),
+            child: const Text('Delete My Account'),
+          ),
+        ],
+      ),
+    );
+  }
+
+  void _showSuperDeleteDialog() {
+    showDialog(
+      context: context,
+      builder: (ctx) => AlertDialog(
+        title: Row(
+          children: [
+            Icon(Icons.warning_amber_rounded, color: Colors.red.shade800, size: 24),
+            const SizedBox(width: 8),
+            const Expanded(child: Text('Immediate Destroy', style: TextStyle(color: Colors.red))),
+          ],
+        ),
+        content: Column(
+          mainAxisSize: MainAxisSize.min,
+          crossAxisAlignment: CrossAxisAlignment.start,
+          children: const [
+            Text(
+              'THIS IS IRREVERSIBLE.',
+              style: TextStyle(fontWeight: FontWeight.bold, color: Colors.red),
+            ),
+            SizedBox(height: 12),
+            Text(
+              'This will send a confirmation email to your registered address. '
+              'When you click the link in that email, your account and ALL associated data '
+              'will be permanently and immediately destroyed.\n\n'
+              'There is NO recovery. NO backup. NO undo.\n\n'
+              'Your posts, messages, encryption keys, profile, followers, and handle '
+              'will all be erased forever.',
+            ),
+          ],
+        ),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.pop(ctx),
+            child: const Text('Cancel'),
+          ),
+          TextButton(
+            onPressed: () async {
+              Navigator.pop(ctx);
+              await _performSuperDelete();
+            },
+            style: TextButton.styleFrom(
+              foregroundColor: Colors.white,
+              backgroundColor: Colors.red.shade800,
+            ),
+            child: const Text('Send Destroy Confirmation Email'),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Future<void> _performDeactivation() async {
+    try {
+      final api = ref.read(apiServiceProvider);
+      await api.callGoApi('/account/deactivate', method: 'POST');
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Account deactivated. Log back in anytime to reactivate.')),
+      );
+      await _signOut();
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Failed to deactivate: $e')),
+      );
+    }
+  }
+
+  Future<void> _performDeletion() async {
+    try {
+      final api = ref.read(apiServiceProvider);
+      await api.callGoApi('/account', method: 'DELETE');
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        const SnackBar(content: Text('Account scheduled for deletion in 14 days. Log back in to cancel.')),
+      );
+      await _signOut();
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Failed to schedule deletion: $e')),
+      );
+    }
+  }
+
+  Future<void> _performSuperDelete() async {
+    try {
+      final api = ref.read(apiServiceProvider);
+      await api.callGoApi('/account/destroy', method: 'POST');
+      if (!mounted) return;
+      showDialog(
+        context: context,
+        barrierDismissible: false,
+        builder: (ctx) => AlertDialog(
+          title: const Text('Confirmation Email Sent'),
+          content: const Text(
+            'A confirmation email has been sent to your registered address.\n\n'
+            'You MUST click the link in that email to complete the destruction. '
+            'If you did not mean to do this, simply ignore the email — your account will not be affected.\n\n'
+            'The link expires in 1 hour.',
+          ),
+          actions: [
+            TextButton(
+              onPressed: () {
+                Navigator.pop(ctx);
+              },
+              child: const Text('OK'),
+            ),
+          ],
+        ),
+      );
+    } catch (e) {
+      if (!mounted) return;
+      ScaffoldMessenger.of(context).showSnackBar(
+        SnackBar(content: Text('Failed to initiate destroy: $e')),
+      );
+    }
+  }
+
   Future<void> _signOut() async {
     final authService = ref.read(authServiceProvider);
     await NotificationService.instance.removeToken();