Make check_count a column on public.headers

- Don't need to maintain it on public.checked_headers if we're not
  adding additional columns to that table

db/migrations/00023_create_headers_table.sql

@@ -1,12 +1,14 @@
 -- +goose Up
-CREATE TABLE public.headers (
-  id                    SERIAL PRIMARY KEY,
-  hash                  VARCHAR(66),
-  block_number          BIGINT,
-  raw                   JSONB,
-  block_timestamp       NUMERIC,
-  eth_node_id           INTEGER NOT NULL REFERENCES eth_nodes (id) ON DELETE CASCADE,
-  eth_node_fingerprint  VARCHAR(128)
+CREATE TABLE public.headers
+(
+    id                   SERIAL PRIMARY KEY,
+    hash                 VARCHAR(66),
+    block_number         BIGINT,
+    raw                  JSONB,
+    block_timestamp      NUMERIC,
+    check_count          INTEGER NOT NULL DEFAULT 0,
+    eth_node_id          INTEGER NOT NULL REFERENCES eth_nodes (id) ON DELETE CASCADE,
+    eth_node_fingerprint VARCHAR(128)
 );
 
 -- Index is removed when table is

db/migrations/00024_create_checked_headers_table.sql

@@ -1,9 +1,7 @@
 -- +goose Up
-CREATE TABLE public.checked_headers
-(
-    id          SERIAL PRIMARY KEY,
-    header_id   INTEGER UNIQUE NOT NULL REFERENCES headers (id) ON DELETE CASCADE,
-    check_count INTEGER        NOT NULL DEFAULT 1
+CREATE TABLE public.checked_headers (
+  id                  SERIAL PRIMARY KEY,
+  header_id           INTEGER UNIQUE NOT NULL REFERENCES headers (id) ON DELETE CASCADE
 );
 
 -- +goose Down

db/migrations/00030_create_checked_logs_table.sql

@@ -9,4 +9,4 @@ CREATE TABLE public.checked_logs
 
 -- +goose Down
 -- SQL in this section is executed when the migration is rolled back.
-DROP TABLE public.checked_logs;
+DROP TABLE public.checked_logs;