refactor!: enforce canonical evidence and provider boundaries

Deliver complete Evidence directly through MCP with required nullable analysis profiles and immutable per-server delivery settings. Bind selected environments at construction and require typed cleanup outcomes with retained retry ownership.

Remove test-only routing, duplicate session and snapshot metadata, producer-field repairs, and ambiguous provider arguments. Separate artifact byte identity from occurrence classification and retain typed source-map and partial native facts across CLI, MCP, and verifier consumers.

BREAKING CHANGE: obsolete Evidence envelopes, session aliases, incomplete snapshots, and missing normalized producer facts are no longer accepted.

src/application/javascript/JavaScriptRuntimeObservationService.ts

@@ -43,18 +43,17 @@ export const observeJavaScriptRuntime = async (
   const ready = requireProvider(provider, "observe_javascript_runtime");
   if (!ready.ok) return ready;
   const result = await ready.value.observe(input, options);
+  if (!result.ok) return result;
   if (options.signal?.aborted === true)
     return err(new AnalysisCancelledError("observe_javascript_runtime"));
-  return result.ok
-    ? ok(
-        createJavaScriptRuntimeObservationEvidence(
-          "observe_javascript_runtime",
-          input,
-          result.value,
-          ready.value.identity(),
-        ),
-      )
-    : result;
+  return ok(
+    createJavaScriptRuntimeObservationEvidence(
+      "observe_javascript_runtime",
+      input,
+      result.value,
+      ready.value.identity(),
+    ),
+  );
 };
 
 const requireProvider = (