feat(writer): add continue-on-error option for SQL writers

* Introduce ContinueOnError option to WriterOptions
* Update writer functions to support continue-on-error behavior
* Modify migration and database writing to handle continue-on-error

pkg/writers/pgsql/templates/create_primary_key_with_autogen_check.tmpl

@@ -31,7 +31,7 @@ BEGIN
   IF current_pk_name IS NOT NULL
      AND NOT current_pk_matches
      AND current_pk_name IN ({{.AutoGenNames}}) THEN
-    EXECUTE 'ALTER TABLE {{qual_table .SchemaName .TableName}} DROP CONSTRAINT ' || quote_ident(current_pk_name);
+    EXECUTE 'ALTER TABLE {{qual_table .SchemaName .TableName}} DROP CONSTRAINT ' || quote_ident(current_pk_name) || ' CASCADE';
   END IF;
 
   -- Add the desired primary key only when no matching primary key already exists.