Simplify diagnostic report ownership

docs/internal/llm.md

@@ -77,7 +77,8 @@ not retain headers, credentials, raw request or response bodies, or a redirect
 trace. These are observations at Promptkit's RoundTripper boundary, not proof
 that bytes reached a peer or that a custom transport did no hidden dispatch.
 Reachability and named authentication probes use the same configured built-in
-client but discard their response bodies after local recognition. The
+client. The OpenRouter adapter owns endpoint derivation, bounded account-response
+recognition, and body closure; the smoke coordinator interprets its evidence. The
 [integration contract](../integrations/openai-compatible-chat.md#explicit-smoke-diagnostics)
 owns their observable HTTP semantics.
 

docs/roadmap/implementation.md

@@ -602,6 +602,12 @@ and public smoke tests pass on Go 1.27.3.
 unchanged tri-state facts, neutral outcomes, no ordinary observer events, target
 redaction, and independent provider maps. Update owning internal documentation.
 
+Completion: diagnostic targets detach provider values directly, and unused
+request/report cloning helpers and their dedicated tests have been removed.
+Authentication routing was completed in the preceding unit. Focused domain,
+adapter, smoke, and facade tests pass on Go 1.27.3; internal adapter ownership
+documentation is updated.
+
 ## Stage 23: Extract Final-Configuration Record Validators
 
 **Catalog:** 22, validation part. **Files:** configuration validation and tests.