feat(migrations): add finalized el rewards table

Author: invis-bitfly

backend/pkg/commons/db/migrations/postgres/20250109144744_add_finalized_execution_rewards_table.sql

@@ -0,0 +1,21 @@
+-- +goose Up
+-- +goose StatementBegin
+CREATE TABLE execution_rewards_finalized (
+	epoch int4 NOT NULL,
+	slot int4 NOT NULL,
+	proposer int4 NOT NULL,
+	value numeric NOT NULL,
+	CONSTRAINT finalized_execution_rewards_pk PRIMARY KEY (slot)
+);
+-- +goose StatementEnd
+-- +goose StatementBegin
+CREATE INDEX finalized_execution_rewards_epoch_idx ON execution_rewards_finalized USING btree (epoch);
+-- +goose StatementEnd
+-- +goose StatementBegin
+CREATE UNIQUE INDEX finalized_execution_rewards_proposer_idx ON execution_rewards_finalized USING btree (proposer, slot);
+-- +goose StatementEnd
+
+-- +goose Down
+-- +goose StatementBegin
+DROP TABLE execution_rewards_finalized;
+-- +goose StatementEnd