fix: correct lint errors in the generated sqlite schema

ops/gas_init_test.sh

@@ -33,7 +33,7 @@ cat >> pkg/db/schema.sql <<EOF
 create table items (
     rowid integer primary key,
     description text not null default ''
-);
+) strict;
 EOF
 
 # Generate an item model and test file
@@ -44,5 +44,8 @@ go mod tidy
 # Run the tests
 go test ./...
 
+# Run sqlite_lint
+$gas sqlite_lint pkg/db/schema.sql
+
 # Notify success in green
 echo -e "\033[32mAll tests passed.  Finished successfully.\033[0m"

pkg/codegen/tpl/schema.sql

@@ -5,6 +5,6 @@ PRAGMA foreign_keys = on;
 -- =======
 
 create table db_version (
-    version integer not null
+    version integer primary key
 ) strict;
 insert into db_version values(0);