Cache free-mode country access (#660)

Author: jahooma

packages/internal/src/db/migrations/0051_easy_sersi.sql

@@ -0,0 +1,18 @@
+CREATE TABLE "free_mode_country_access_cache" (
+	"user_id" text NOT NULL,
+	"client_ip_hash" text NOT NULL,
+	"allowed" boolean NOT NULL,
+	"country_code" text,
+	"cf_country" text,
+	"geoip_country" text,
+	"country_block_reason" text,
+	"ip_privacy_signals" text[],
+	"checked_at" timestamp with time zone NOT NULL,
+	"expires_at" timestamp with time zone NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL,
+	CONSTRAINT "free_mode_country_access_cache_user_id_client_ip_hash_pk" PRIMARY KEY("user_id","client_ip_hash")
+);
+--> statement-breakpoint
+ALTER TABLE "free_mode_country_access_cache" ADD CONSTRAINT "free_mode_country_access_cache_user_id_user_id_fk" FOREIGN KEY ("user_id") REFERENCES "public"."user"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "idx_free_mode_country_cache_expires_at" ON "free_mode_country_access_cache" USING btree ("expires_at");