feat: auth system, scrip scheduler, UI widgets, and new API routes

- Add session-based authentication (login page, middleware, auth context)
- Add cron-like scrip scheduler for time-based conditions
- Add layout builder, scrip wizard, searchable select components
- Add trend chart widget for dashboards
- Add notifications, attachments, queue-permissions API routes
- Add seed-users script
- Update schema with 10 new migrations (0008-0017)
- Apply redesign: Linear-inspired dark theme, conversation-centric UI
- Gitignore runtime data directory

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

drizzle/migrations/0013_bored_silvermane.sql

@@ -0,0 +1,12 @@
+CREATE TABLE "user_permissions" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"queue_id" uuid NOT NULL,
+	"user_id" uuid NOT NULL,
+	"right_name" text NOT NULL,
+	CONSTRAINT "user_permissions_queue_user_right_unique" UNIQUE("queue_id","user_id","right_name")
+);
+--> statement-breakpoint
+ALTER TABLE "user_permissions" ADD CONSTRAINT "user_permissions_queue_id_queues_id_fk" FOREIGN KEY ("queue_id") REFERENCES "public"."queues"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "user_permissions" ADD CONSTRAINT "user_permissions_user_id_users_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "user_permissions_queue_id_idx" ON "user_permissions" USING btree ("queue_id");--> statement-breakpoint
+CREATE INDEX "user_permissions_user_id_idx" ON "user_permissions" USING btree ("user_id");