feat: add manual instagram session login

db/migrations/047_insta_manual_auth.sql

@@ -0,0 +1,12 @@
+INSERT INTO app_settings(key, value_json, value_type, title, description, category)
+VALUES
+  ('insta_auth_status', '""'::jsonb, 'str', 'Instagram auth status', 'Last manual Instagram login result.', 'Instagram Parser')
+ON CONFLICT (key) DO NOTHING;
+
+UPDATE app_settings
+SET description='Used only by the manual Instagram login button. The parser reads the saved session file and does not auto-login.'
+WHERE key='insta_login';
+
+UPDATE app_settings
+SET description='Used only by the manual Instagram login button. The parser reads the saved session file and does not auto-login.'
+WHERE key='insta_password';