PB-0 cycle-4 NON_TEST retirement (msg_5d7f3491): 7 paths — complexity_lattice.rs; cost_basis_declaration.rs; enforced_lens_application.rs; int_literal_ranges.rs; pb_method_template_projection.rs; emit/collection_ops_method_contract.rs; emit_rust_bin_shim.rs — brief docs/briefs/r3-pb0-non-test-retire - #3048