{
  "date": "2026-10-25",
  "scope": "Box selection and staged grouped copy/delete",
  "approximateFullPlanPercent": 47,
  "numberedMilestonesClosed": [],
  "verification": {
    "headless": {
      "passed": 474,
      "failed": 0,
      "source": "/tmp/dw-structure-headless-final.log"
    },
    "browser": {
      "regressionPassed": 12,
      "finalMarqueePassed": 2,
      "distinctScenarios": 13,
      "failed": 0,
      "reports": [
        "editor-structure-regression.json",
        "editor-marquee-regression.json"
      ]
    },
    "typeAndImportChecks": "passed, 93 package files",
    "productionBuilds": "isolated browser production build and relay SSR build passed"
  },
  "coverage": [
    "Nested group copy with fresh identities and parent-space offsets",
    "Staged copy movement, deletion, discard and exact durable undo/redo",
    "Foreign membership changes reject stale subtree deletion",
    "Rectangle replace/add/subtract/cancel and dirty-draft protection",
    "65-root rectangle preserves previous selection",
    "Copied and deleted arrangements applied while two players remain connected using worker and main-thread rendering"
  ],
  "limits": [
    "64 selected roots; 256 nodes per structural edit",
    "Full projected bounds selection includes occluded shapes",
    "Gameplay bindings remain on originals when copying",
    "Parent-relative gameplay and speculative group presence remain open"
  ],
  "visualEvidence": "editor-marquee.png"
}