fix: Align NestJS entities with actual DB schema — 12 files, 5 entities

Root cause of all remaining 500s: TypeORM entities were scaffolded with
"ideal" column names that don't match the Postgres columns created by
the Rust migrations. Every query generated SQL referencing non-existent
columns.

Entity fixes:
- notifications_config: email_enabled→email_alerts_enabled, removed
  6 phantom columns (email_address, notify_on_start, notify_on_stop,
  notify_on_player_threshold, player_threshold), renamed 4 notify
  columns to match DB (notify_server_crash, notify_wipe_start, etc),
  added 3 missing columns (notify_server_offline, notify_store_purchase,
  notify_player_report)
- team_members: joined_at→accepted_at (nullable, matches DB)
- roles: removed description column (doesn't exist in DB)
- scheduled_tasks: is_enabled→is_active, removed phantom last_run
- wipe_profiles: pre/post_wipe_config nullable→NOT NULL with default

Service/DTO fixes:
- Updated all property references across notifications, team, schedules
  services and DTOs to match corrected entity names
- Added is_active to UpdateTaskDto (frontend sends it, was being
  rejected by forbidNonWhitelisted validation)
- Removed description from CreateRoleDto

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-nest/src/entities/notifications-config.entity.ts

@@ -21,35 +21,29 @@ export class NotificationsConfig {
   @Column({ type: 'boolean', default: false })
   pushbullet_enabled: boolean;
 
-  @Column({ type: 'boolean', default: false })
-  email_enabled: boolean;
-
-  @Column({ type: 'text', nullable: true })
-  email_address: string | null;
+  @Column({ type: 'boolean', default: true })
+  email_alerts_enabled: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_start: boolean;
+  notify_wipe_start: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_stop: boolean;
+  notify_wipe_complete: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_crash: boolean;
+  notify_wipe_failed: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_wipe_start: boolean;
+  notify_server_crash: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_wipe_complete: boolean;
+  notify_server_offline: boolean;
 
   @Column({ type: 'boolean', default: true })
-  notify_on_wipe_failure: boolean;
+  notify_store_purchase: boolean;
 
   @Column({ type: 'boolean', default: false })
-  notify_on_player_threshold: boolean;
-
-  @Column({ type: 'int', nullable: true })
-  player_threshold: number | null;
+  notify_player_report: boolean;
 
   @Column({ type: 'timestamptz', default: () => 'NOW()' })
   created_at: Date;

backend-nest/src/entities/role.entity.ts

@@ -12,9 +12,6 @@ export class Role {
   @Column({ type: 'varchar', length: 50 })
   role_name: string;
 
-  @Column({ type: 'text', nullable: true })
-  description: string | null;
-
   @Column({ type: 'boolean', default: false })
   is_system_default: boolean;
 

backend-nest/src/entities/scheduled-task.entity.ts

@@ -26,10 +26,7 @@ export class ScheduledTask {
   task_config: Record<string, any>;
 
   @Column({ type: 'boolean', default: true })
-  is_enabled: boolean;
-
-  @Column({ type: 'timestamptz', nullable: true })
-  last_run: Date | null;
+  is_active: boolean;
 
   @Column({ type: 'timestamptz', nullable: true })
   next_run: Date | null;

backend-nest/src/entities/team-member.entity.ts

@@ -21,8 +21,8 @@ export class TeamMember {
   @Column({ type: 'uuid' })
   invited_by: string;
 
-  @Column({ type: 'timestamptz', default: () => 'NOW()' })
-  joined_at: Date;
+  @Column({ type: 'timestamptz', nullable: true })
+  accepted_at: Date | null;
 
   @Column({ type: 'timestamptz', default: () => 'NOW()' })
   created_at: Date;

backend-nest/src/entities/wipe-profile.entity.ts

@@ -15,11 +15,11 @@ export class WipeProfile {
   @Column({ type: 'text', nullable: true })
   description: string | null;
 
-  @Column({ type: 'jsonb', nullable: true })
-  pre_wipe_config: Record<string, any> | null;
+  @Column({ type: 'jsonb', default: {} })
+  pre_wipe_config: Record<string, any>;
 
-  @Column({ type: 'jsonb', nullable: true })
-  post_wipe_config: Record<string, any> | null;
+  @Column({ type: 'jsonb', default: {} })
+  post_wipe_config: Record<string, any>;
 
   @Column({ type: 'timestamptz', default: () => 'NOW()' })
   created_at: Date;