fix: remove stale diagramNodeId from test ProcessorRecord constructors

TreeReconstructionTest and PostgresExecutionStoreIT still passed the
removed diagramNodeId parameter. Missed by mvn compile (main only);
caught by mvn verify (test compilation).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-core/src/test/java/com/cameleer3/server/core/detail/TreeReconstructionTest.java

@@ -24,7 +24,7 @@ class TreeReconstructionTest {
     private ProcessorRecord proc(String id, String type, String status,
                                   int depth, String parentId) {
         return new ProcessorRecord(
-                "exec-1", id, type, "node-" + id,
+                "exec-1", id, type,
                 "default", "route1", depth, parentId,
                 status, NOW, NOW, 10L,
                 null, null, null, null, null, null, null