feat(02-01): record and replay one route through the summer CLI

- Add a generic tide flow schema with YAML fixture IO and HTTP record/replay
- Register parity:record and parity:replay on the bonfire summer tool
- Diff JSON scalars at $.path and non-JSON bodies at the changed byte offset

Co-authored-by: Cursor <cursoragent@cursor.com>

cmd/summer/main.go

@@ -29,6 +29,8 @@ func toolCommands() []bonfire.Command {
 		makePluginCommand(),
 		addPluginCommand(),
 		devCommand(),
+		parityRecordCommand(),
+		parityReplayCommand(),
 	}
 }