test(javascript): pin A1/A5 plain-object property acceptance criteria

Fixture plus todo specs for the four shapes plain-object property access has
to answer: object-literal keys indexed as Property nodes, a read through the
holding variable, a property WRITE, and a read through an untyped param.

Records the investigation so the work is resumable: the parse-query pattern
scoped to literals bound to a variable matches correctly (verified against
the raw JAVASCRIPT_QUERIES), but no Property node reaches the graph and
local-symbol-pruner is not the cause — it drops only Const/Variable/Static.
The remaining gate is in the parse worker's node-creation path.

No production code — specs only, so the suite stays green.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

gitnexus/test/fixtures/lang-resolution/javascript-object-properties/rules.js

@@ -0,0 +1,20 @@
+// A1/A5: a plain object literal held by a module const — no class anywhere.
+export const exitRules = {
+  exitMinAtrMult: 1.5,
+  stopAtrMult: 2.0,
+};
+
+// A5: property WRITE on a plain object (the "where is this field SET?" case).
+export function tightenExit() {
+  exitRules.exitMinAtrMult = 3.0;
+}
+
+// A1: property READ through the holding variable — receiver IS typeable.
+export function readViaVariable() {
+  return exitRules.exitMinAtrMult;
+}
+
+// A1: property READ through an untyped param (the option-bag case).
+export function applyRules(cfg) {
+  return cfg.exitMinAtrMult * cfg.stopAtrMult;
+}

gitnexus/test/integration/resolvers/javascript-object-properties.test.ts

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+/**
+ * A1/A5 — property access on a PLAIN OBJECT LITERAL must be answerable.
+ *
+ * Verified root cause: `Property` definition nodes are created only for
+ * DECLARED CLASS FIELDS. Object-literal keys mint no node, so `ACCESSES` has
+ * no target and "who reads/writes this config field?" returns a confident
+ * zero. Capture and emission are already correct and language-neutral — a
+ * `read`/`write` site maps to `ACCESSES` for any resolved target — so this is
+ * purely definition-node coverage plus receiver resolution.
+ *
+ * Two receiver shapes, deliberately separated:
+ *   - through the holding variable (`exitRules.exitMinAtrMult`) — the receiver
+ *     is typeable, so this must resolve precisely.
+ *   - through an untyped param (`cfg.exitMinAtrMult`) — the option-bag shape
+ *     that dominates idiomatic JS. Not precisely solvable without types;
+ *     covered by name-based fallback at reduced confidence.
+ *
+ * STATUS — not yet implemented; these are the acceptance criteria.
+ *
+ * Established so far:
+ *   - A parse-query pattern scoped to object literals BOUND TO A VARIABLE
+ *     (`(variable_declarator name: (identifier) value: (object (pair key:
+ *     (property_identifier) @name) @definition.property))`) matches correctly:
+ *     verified against the raw JAVASCRIPT_QUERIES, 4 captures on this fixture
+ *     with the right names. It is NOT enough on its own — no `Property` node
+ *     reaches the graph, and `local-symbol-pruner` is not the cause (it drops
+ *     only Const/Variable/Static). The remaining gate is in the parse worker's
+ *     node-creation path for `@definition.property` captures.
+ *   - The two receiver shapes need different mechanisms. Through the holding
+ *     variable the receiver is typeable and must resolve precisely. Through an
+ *     untyped param it is not, and needs name-based matching — sanctioned for
+ *     dynamic languages here (`fieldFallbackOnMethodLookup` defaults on, and
+ *     the Vue provider documents it recovering plain-object-literal cases) but
+ *     it must carry reduced confidence so precision is not overclaimed.
+ */
+import { describe, it, beforeAll } from 'vitest';
+import path from 'path';
+import { FIXTURES, runPipelineFromRepo, type PipelineResult } from './helpers.js';
+
+describe('JavaScript plain-object property access (A1/A5)', () => {
+  let result: PipelineResult;
+
+  beforeAll(async () => {
+    result = await runPipelineFromRepo(
+      path.join(FIXTURES, 'javascript-object-properties'),
+      () => {},
+    );
+  }, 60000);
+
+  it.todo('indexes object-literal keys as Property nodes');
+  it.todo('emits ACCESSES for a read through the holding variable');
+  it.todo('emits ACCESSES for the property WRITE (A5)');
+  it.todo('emits ACCESSES for a read through an untyped param (option bag)');
+});