fix(javascript): preserve alias and container uncertainty

src/application/javascript/JavaScriptSemanticGraphValueProjection.ts

@@ -3,10 +3,8 @@ import {
   semanticPropertyPointer,
   type JavaScriptSemanticSlot,
 } from "../../domain/javascript/javascriptSemanticSlots.js";
-import type {
-  JavaScriptSemanticBinding,
-  JavaScriptSemanticValue,
-} from "../../domain/javascript/javascriptSemanticIr.js";
+import type { JavaScriptSemanticBinding } from "../../domain/javascript/javascriptSemanticIr.js";
+import type { JavaScriptSemanticValue } from "../../domain/javascript/javascriptSemanticValueTypes.js";
 import { createJavaScriptSemanticGraphUnknown } from "../../domain/javascript/javascriptSemanticGraph.js";
 import {
   retainSemanticGraphNode,
@@ -14,7 +12,10 @@ import {
   addSemanticGraphUnknown,
 } from "./JavaScriptSemanticGraphConstruction.js";
 import type { SemanticFlowProjectionContext } from "./JavaScriptSemanticGraphFlowProjection.js";
-import { observedSemanticEvidence } from "./JavaScriptSemanticGraphEvidence.js";
+import {
+  observedSemanticEvidence,
+  unknownSemanticEvidence,
+} from "./JavaScriptSemanticGraphEvidence.js";
 
 /** Project bounded literal values and object slots for exact query seeds. */
 export const projectSemanticValues = (
@@ -90,6 +91,24 @@ const projectValue = (input: ValueProjectionInput): void => {
           path: propertyPath,
         });
     }
+    if (container.coverage.status === "partial")
+      addSemanticGraphUnknown(
+        context.state,
+        createJavaScriptSemanticGraphUnknown({
+          node_id: target.node_id,
+          family: "object-flow",
+          relation_kinds: ["writes-property"],
+          reason: "ambiguous-target",
+          detail: `Initializer container has unknown ${
+            value.status === "object" ? "properties" : "items"
+          }${container.coverage.omitted === null ? " with an unknown omitted count" : `; ${container.coverage.omitted} omitted`}.`,
+          candidate_node_ids: [target.node_id],
+          evidence: unknownSemanticEvidence(
+            context.file,
+            binding.definitions[0]?.location ?? null,
+          ),
+        }),
+      );
   } else if (value.status === "unknown" && value.resourceLimit !== undefined) {
     const location = binding.definitions[0]?.location ?? null;
     const evidence = observedSemanticEvidence(context.file, location);