Add userDismissedAt field to agents schema

drizzle/0001_overrated_gladiator.sql

@@ -0,0 +1,8 @@
+CREATE TABLE `phase_dependencies` (
+	`id` text PRIMARY KEY NOT NULL,
+	`phase_id` text NOT NULL,
+	`depends_on_phase_id` text NOT NULL,
+	`created_at` integer NOT NULL,
+	FOREIGN KEY (`phase_id`) REFERENCES `phases`(`id`) ON UPDATE no action ON DELETE cascade,
+	FOREIGN KEY (`depends_on_phase_id`) REFERENCES `phases`(`id`) ON UPDATE no action ON DELETE cascade
+);