fix(javascript): omit self-referential static references with disclosure (#1157)

* fix(javascript): omit self-referential static references with disclosure

A bundled module that requires its own key (`r(50)` inside webpack
module 50) resolved, through the static-reference composer, to its own
module node. The resulting self-referential imports edge failed result
validation and lost the entire analysis ("Result schema rejected 1
issue ... (custom)"). This is the same invariant as #1146; #1152 fixed
the bundler async-chunk composer, and this is the remaining adjacent
composer.

Skip a reference whose resolved target is its own source, count it, and
disclose the omission the way #1152 discloses async-chunk references.
Sibling requires are kept.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* refactor(javascript): share the self-reference omission disclosure

The self-import (#1130), async-chunk (#1152) and static-reference
disclosures repeated one sentence template in three composers, and the
new test repeated the analyze-and-check sequence of its neighbour. That
put jscpd at its 2.5% threshold. Share the template through
selfReferenceOmissions with identical wording, and share one test helper
for the graph-wide self-reference invariants.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

src/application/javascript/JavaScriptArtifactGraphContext.ts

@@ -306,6 +306,21 @@ export const linkElectronRoleToAsset = (
   });
 };
 
+/**
+ * Disclose relationships omitted because they resolved to their own source;
+ * the application graph forbids self-referential edges.
+ */
+export const selfReferenceOmissions = (
+  count: number,
+  noun: readonly [singular: string, plural: string],
+  owner: string,
+): string[] =>
+  count === 0
+    ? []
+    : [
+        `${String(count)} ${count === 1 ? noun[0] : noun[1]} resolved back to ${owner} itself and ${count === 1 ? "was" : "were"} omitted; application graph edges cannot be self-referential.`,
+      ];
+
 /** Deterministic key for one recovered module inside a bundle asset. */
 export const moduleLookupKey = (path: string, moduleKey: string): string =>
   `${path}\0${moduleKey}`;