more specific result handlers for back transfers #7260

Job	Run time
cargo fmt	18s
Contracts / Interactor tests	17m 49s
Contracts / Wasm tests	12m 9s
Contracts / Rust tests	5m 2s
Contracts / Clippy linter check	1m 53s
Contracts / Test Coverage	9m 39s
	46m 50s

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