test(corpus): Java oracle — FILIUS 2.14 reads the corpus itself

tools/java-oracle builds FILIUS at 6640354 and loads every .fls through
its own private loader under Xvfb. All 23 files load with every node
positioned and every cable resolved (Swift: 20 of 25 nodes in the
Internet example). MAC addresses FILIUS generates are left out, so two
runs are byte-identical.

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

package.json

@@ -14,7 +14,8 @@
     "typecheck": "tsc -b && tsc -p packages/core/test",
     "check": "npm run typecheck && npm run test",
     "hooks": "git config core.hooksPath scripts/hooks",
-    "oracle": "tools/swift-oracle/run.sh"
+    "oracle": "tools/swift-oracle/run.sh",
+    "oracle:java": "tools/java-oracle/run.sh"
   },
   "devDependencies": {
     "@types/node": "^20.19.0",