feat : comment feature

drizzle/0077_reflective_chimera.sql

@@ -0,0 +1,8 @@
+CREATE TABLE "comments"."read_state" (
+	"user_id" text NOT NULL,
+	"target" text NOT NULL,
+	"seen_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "read_state_user_id_target_pk" PRIMARY KEY("user_id","target")
+);
+--> statement-breakpoint
+ALTER TABLE "comments"."read_state" ADD CONSTRAINT "read_state_user_id_user_id_fk" FOREIGN KEY ("user_id") REFERENCES "auth"."user"("id") ON DELETE cascade ON UPDATE no action;