diff --git a/backend/db/migrations/0005_green_shinobi_shaw.sql b/backend/db/migrations/0005_green_shinobi_shaw.sql
index 190e7ad..a5bcb26 100644
--- a/backend/db/migrations/0005_green_shinobi_shaw.sql
+++ b/backend/db/migrations/0005_green_shinobi_shaw.sql
@@ -14,26 +14,6 @@ CREATE TABLE "m2m_api_keys" (
 	CONSTRAINT "m2m_api_keys_key_hash_unique" UNIQUE("key_hash")
 );
 --> statement-breakpoint
-CREATE TABLE "staff_time_events" (
-	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
-	"tenant_id" bigint NOT NULL,
-	"user_id" uuid NOT NULL,
-	"actor_type" text NOT NULL,
-	"actor_user_id" uuid,
-	"event_time" timestamp with time zone NOT NULL,
-	"event_type" text NOT NULL,
-	"source" text NOT NULL,
-	"invalidates_event_id" uuid,
-	"related_event_id" uuid,
-	"metadata" jsonb,
-	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
-	CONSTRAINT "time_events_actor_user_check" CHECK (
-        (actor_type = 'system' AND actor_user_id IS NULL)
-        OR
-        (actor_type = 'user' AND actor_user_id IS NOT NULL)
-      )
-);
---> statement-breakpoint
 CREATE TABLE "serialtypes" (
 	"id" bigint PRIMARY KEY GENERATED BY DEFAULT AS IDENTITY (sequence name "serialtypes_id_seq" INCREMENT BY 1 MINVALUE 1 MAXVALUE 9223372036854775807 START WITH 1 CACHE 1),
 	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
@@ -89,20 +69,15 @@ CREATE TABLE "wiki_pages" (
 	"updated_by" uuid
 );
 --> statement-breakpoint
-ALTER TABLE "time_events" DISABLE ROW LEVEL SECURITY;--> statement-breakpoint
-DROP TABLE "time_events" CASCADE;--> statement-breakpoint
 ALTER TABLE "projects" ALTER COLUMN "active_phase" SET DEFAULT 'Erstkontakt';--> statement-breakpoint
 ALTER TABLE "createddocuments" ADD COLUMN "serialexecution" uuid;--> statement-breakpoint
 ALTER TABLE "devices" ADD COLUMN "last_seen" timestamp with time zone;--> statement-breakpoint
 ALTER TABLE "devices" ADD COLUMN "last_debug_info" jsonb;--> statement-breakpoint
 ALTER TABLE "files" ADD COLUMN "size" bigint;--> statement-breakpoint
+ALTER TABLE "staff_time_events" ADD COLUMN "related_event_id" uuid;--> statement-breakpoint
 ALTER TABLE "m2m_api_keys" ADD CONSTRAINT "m2m_api_keys_tenant_id_tenants_id_fk" FOREIGN KEY ("tenant_id") REFERENCES "public"."tenants"("id") ON DELETE cascade ON UPDATE cascade;--> statement-breakpoint
 ALTER TABLE "m2m_api_keys" ADD CONSTRAINT "m2m_api_keys_user_id_auth_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."auth_users"("id") ON DELETE cascade ON UPDATE cascade;--> statement-breakpoint
 ALTER TABLE "m2m_api_keys" ADD CONSTRAINT "m2m_api_keys_created_by_auth_users_id_fk" FOREIGN KEY ("created_by") REFERENCES "public"."auth_users"("id") ON DELETE set null ON UPDATE cascade;--> statement-breakpoint
-ALTER TABLE "staff_time_events" ADD CONSTRAINT "staff_time_events_tenant_id_tenants_id_fk" FOREIGN KEY ("tenant_id") REFERENCES "public"."tenants"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
-ALTER TABLE "staff_time_events" ADD CONSTRAINT "staff_time_events_user_id_auth_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."auth_users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
-ALTER TABLE "staff_time_events" ADD CONSTRAINT "staff_time_events_actor_user_id_auth_users_id_fk" FOREIGN KEY ("actor_user_id") REFERENCES "public"."auth_users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
-ALTER TABLE "staff_time_events" ADD CONSTRAINT "staff_time_events_invalidates_event_id_staff_time_events_id_fk" FOREIGN KEY ("invalidates_event_id") REFERENCES "public"."staff_time_events"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
 ALTER TABLE "staff_time_events" ADD CONSTRAINT "staff_time_events_related_event_id_staff_time_events_id_fk" FOREIGN KEY ("related_event_id") REFERENCES "public"."staff_time_events"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
 ALTER TABLE "serialtypes" ADD CONSTRAINT "serialtypes_tenant_tenants_id_fk" FOREIGN KEY ("tenant") REFERENCES "public"."tenants"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
 ALTER TABLE "serialtypes" ADD CONSTRAINT "serialtypes_updated_by_auth_users_id_fk" FOREIGN KEY ("updated_by") REFERENCES "public"."auth_users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
@@ -113,11 +88,8 @@ ALTER TABLE "wiki_pages" ADD CONSTRAINT "wiki_pages_tenant_id_tenants_id_fk" FOR
 ALTER TABLE "wiki_pages" ADD CONSTRAINT "wiki_pages_parent_id_wiki_pages_id_fk" FOREIGN KEY ("parent_id") REFERENCES "public"."wiki_pages"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
 ALTER TABLE "wiki_pages" ADD CONSTRAINT "wiki_pages_created_by_auth_users_id_fk" FOREIGN KEY ("created_by") REFERENCES "public"."auth_users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
 ALTER TABLE "wiki_pages" ADD CONSTRAINT "wiki_pages_updated_by_auth_users_id_fk" FOREIGN KEY ("updated_by") REFERENCES "public"."auth_users"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
-CREATE INDEX "idx_time_events_tenant_user_time" ON "staff_time_events" USING btree ("tenant_id","user_id","event_time");--> statement-breakpoint
-CREATE INDEX "idx_time_events_created_at" ON "staff_time_events" USING btree ("created_at");--> statement-breakpoint
-CREATE INDEX "idx_time_events_invalidates" ON "staff_time_events" USING btree ("invalidates_event_id");--> statement-breakpoint
 CREATE INDEX "wiki_pages_tenant_idx" ON "wiki_pages" USING btree ("tenant_id");--> statement-breakpoint
 CREATE INDEX "wiki_pages_parent_idx" ON "wiki_pages" USING btree ("parent_id");--> statement-breakpoint
 CREATE INDEX "wiki_pages_entity_int_idx" ON "wiki_pages" USING btree ("tenant_id","entity_type","entity_id");--> statement-breakpoint
 CREATE INDEX "wiki_pages_entity_uuid_idx" ON "wiki_pages" USING btree ("tenant_id","entity_type","entity_uuid");--> statement-breakpoint
-ALTER TABLE "createddocuments" ADD CONSTRAINT "createddocuments_serialexecution_serial_executions_id_fk" FOREIGN KEY ("serialexecution") REFERENCES "public"."serial_executions"("id") ON DELETE no action ON UPDATE no action;
\ No newline at end of file
+ALTER TABLE "createddocuments" ADD CONSTRAINT "createddocuments_serialexecution_serial_executions_id_fk" FOREIGN KEY ("serialexecution") REFERENCES "public"."serial_executions"("id") ON DELETE no action ON UPDATE no action;