fix(native)!: preserve value-flow absence semantics (#8785)

* fix(native)!: preserve value-flow absence semantics

* test(native): compare value-flow reasons with their owners

Stop freezing the unrecorded and Kuna unavailable sentences. Assert the
procedure-scoped unknown and that an explicit provider reason is preserved.

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>

src/application/WorkflowAnalysisProfile.ts

@@ -13,6 +13,9 @@ export const workflowAnalysisProfile = (
   createAnalysisProfile(REA_WORKFLOW_PROVIDER, {
     upstream_analysis_profile: upstream,
     source_limitations: "provider-operation-caveats-v1",
+    ...(operation === "trace_native_values"
+      ? { value_flow_absence: "recorded-versus-unavailable-v1" }
+      : {}),
     ...(operation === "binary_overview"
       ? { workflow_revision: 5 }
       : operation === "batch_decompile"