save checkpoint: save features

docs/qa/feature-checks/runs/web/graph-split-view-with-diff-engine/run-001/tier0-source-check.json

@@ -0,0 +1,22 @@
+{
+    "feature":  "graph-split-view-with-diff-engine",
+    "filesChecked":  [
+                         "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-split-view.component.ts",
+                         "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-diff.component.ts",
+                         "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/index.ts",
+                         "src/Web/StellaOps.Web/src/app/features/graph/graph-explorer.component.ts",
+                         "src/Web/StellaOps.Web/src/tests/graph/graph-split-view-with-diff-engine.component.spec.ts"
+                     ],
+    "found":  [
+                  "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-split-view.component.ts",
+                  "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/graph-diff.component.ts",
+                  "src/Web/StellaOps.Web/src/app/shared/components/graph-diff/index.ts",
+                  "src/Web/StellaOps.Web/src/app/features/graph/graph-explorer.component.ts",
+                  "src/Web/StellaOps.Web/src/tests/graph/graph-split-view-with-diff-engine.component.spec.ts"
+              ],
+    "missing":  [
+
+                ],
+    "verdict":  "pass",
+    "checkedAtUtc":  "2026-02-11T07:02:04Z"
+}

docs/qa/feature-checks/runs/web/graph-split-view-with-diff-engine/run-001/tier1-build-check.json

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+{
+    "project":  "src/Web/StellaOps.Web",
+    "buildCommand":  "npm run build",
+    "buildResult":  "pass",
+    "testCommand":  [
+                        "npx ng test --watch=false --include src/tests/graph/graph-split-view-with-diff-engine.component.spec.ts"
+                    ],
+    "testResult":  "pass",
+    "testsPassed":  "4/4",
+    "testFilesPassed":  "1/1",
+    "warnings":  [
+                     "NG8011 control-flow content-projection warnings in evidence-thread templates remain from existing baseline.",
+                     "NG8113 unused RouterLink/RouterLinkActive warnings remain from existing baseline.",
+                     "Bundle/style budget warnings remain from existing baseline."
+                 ],
+    "codeReview":  [
+                       "Graph split view computes deterministic add/remove/change deltas via GraphDiffEngine summaries.",
+                       "Split mode, digest preview rendering, and synchronized node selection are implemented in shared graph-diff components.",
+                       "Feature export wiring now exposes graph split component from shared graph-diff index for consumer integration."
+                   ],
+    "checkedAtUtc":  "2026-02-11T07:02:04Z"
+}

docs/qa/feature-checks/runs/web/graph-split-view-with-diff-engine/run-001/tier2-e2e-check.json

@@ -0,0 +1,16 @@
+{
+    "type":  "integration",
+    "harness":  "Angular component behavior tests",
+    "capturedAtUtc":  "2026-02-11T07:02:04Z",
+    "steps":  [
+                  {
+                      "description":  "Verify deterministic split-view diff summary, mode persistence, and synchronized node selection behavior.",
+                      "evidence":  [
+                                       "src/tests/graph/graph-split-view-with-diff-engine.component.spec.ts"
+                                   ],
+                      "result":  "pass"
+                  }
+              ],
+    "verdict":  "pass",
+    "checkedAtUtc":  "2026-02-11T07:02:04Z"
+}