The framework ADR must be self-contained: it described the motivating failure
modes by naming a specific downstream service and one of its internal ADRs, which
no framework reader has context for. Reworded to 'a downstream service' and to the
general authorization-boundary rationale.
Bind and BindEmpty fill Req from path/query/json struct tags and validate
once, extending the typed decode->validate->call->encode pipeline to routes
with identifiers and filters. Conversion via builtins + encoding.TextUnmarshaler
(uuid.UUID, time.Time); malformed value -> 400 naming the parameter; default:
applies only when absent; repeated query -> slice; mis-tagged struct panics at
wiring. Purely additive; existing adapters unchanged. Coordinated lockstep v1.6.0.
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