Using numeric(20,0) for chain_selector and blocks in ccv_chain_statuses (#21303)

DB migration fix

Author: mateusz-sekara

core/store/migrate/migrations/0291_change_chain_selector_and_block_height_to_numeric.sql

@@ -0,0 +1,23 @@
+-- +goose Up
+-- Change chain_selector and finalized_block_height from TEXT to NUMERIC(20, 0)
+-- These columns store uint64 values which fit within NUMERIC(20, 0)
+
+-- Drop the primary key constraint temporarily since chain_selector is part of it
+ALTER TABLE ccv_chain_statuses DROP CONSTRAINT ccv_chain_statuses_pkey;
+
+-- Change column types
+-- The USING clause will cast existing TEXT values to NUMERIC
+-- Since the code stores numeric strings (e.g., "123456"), the cast will work correctly
+ALTER TABLE ccv_chain_statuses ALTER COLUMN chain_selector TYPE NUMERIC(20, 0) USING chain_selector::NUMERIC(20, 0);
+ALTER TABLE ccv_chain_statuses ALTER COLUMN finalized_block_height TYPE NUMERIC(20, 0) USING finalized_block_height::NUMERIC(20, 0);
+
+-- Recreate the primary key constraint
+ALTER TABLE ccv_chain_statuses ADD PRIMARY KEY (chain_selector, verifier_id);
+
+-- +goose Down
+-- Revert back to TEXT type
+ALTER TABLE ccv_chain_statuses DROP CONSTRAINT ccv_chain_statuses_pkey;
+ALTER TABLE ccv_chain_statuses ALTER COLUMN chain_selector TYPE TEXT USING chain_selector::TEXT;
+ALTER TABLE ccv_chain_statuses ALTER COLUMN finalized_block_height TYPE TEXT USING finalized_block_height::TEXT;
+ALTER TABLE ccv_chain_statuses ADD PRIMARY KEY (chain_selector, verifier_id);
+