FN-6968: refresh test timing snapshots

Refresh the weekly test velocity baseline with current timing evidence.

- Update the rendered baseline report with the latest capture timestamps and velocity deltas.
- Replace stale slowest-file timing rows with the refreshed snapshot entries.
- Append the latest velocity history sample used by the weekly report.

Files changed:
 docs/test-velocity-baseline.md     |   61 +-
 scripts/test-timings.json          | 1772 +++++++++++++++++++++++++++++-------
 scripts/test-velocity-history.json |  112 +++
 3 files changed, 1580 insertions(+), 365 deletions(-)

Fusion-Task-Id: FN-6968

Fusion-Task-Lineage: 940f3581-3650-4feb-8730-d6dbb760e30c

scripts/test-velocity-history.json

@@ -906,6 +906,118 @@
         "Timing snapshot is 19 days old; verify slowest-file attribution before treating the table as the current culprit.",
         "5 of the listed slowest files no longer exist at the recorded paths: `packages/engine/src/__tests__/reliability-interactions/shared-branch-group-lifecycle.test.ts`, `packages/engine/src/__tests__/reliability-interactions/branch-group-automerge-precedence.test.ts`, `packages/engine/src/__tests__/reliability-interactions/branch-group-merge-routing.test.ts`, `packages/engine/src/__tests__/reliability-interactions/branch-group-promotion-gate.test.ts`, `packages/engine/src/__tests__/reliability-interactions/branch-group-promotion.test.ts`. Refresh scripts/test-timings.json before choosing a slow-test rewrite."
       ]
+    },
+    {
+      "capturedAt": "2026-06-25T05:47:54.804Z",
+      "gateMs": 7471,
+      "bootSmokeMs": 18157,
+      "testMs": 9439,
+      "quarantineCount": 0,
+      "slowestTop20": [
+        {
+          "file": "packages/dashboard/app/components/__tests__/SettingsModal.test.tsx",
+          "ms": 60500,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/src/__tests__/insights-routes.test.ts",
+          "ms": 26500,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/engine/src/runtimes/__tests__/in-process-runtime.test.ts",
+          "ms": 24700,
+          "package": "@fusion/engine"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/ChatView.test.tsx",
+          "ms": 24400,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/src/__tests__/workflow-routes.test.ts",
+          "ms": 22000,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/core/src/__tests__/db.test.ts",
+          "ms": 21200,
+          "package": "@fusion/core"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/GitManagerModal.test.tsx",
+          "ms": 16900,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/core/src/__tests__/mission-store.test.ts",
+          "ms": 16000,
+          "package": "@fusion/core"
+        },
+        {
+          "file": "packages/cli/src/__tests__/extension.test.ts",
+          "ms": 15700,
+          "package": "@runfusion/fusion"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/AgentPromptsManager.test.tsx",
+          "ms": 14800,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/App.test.tsx",
+          "ms": 14600,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/TaskDetailModal.inline-editing-and-integrations.test.tsx",
+          "ms": 14100,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/TaskDetailModal.rendering.test.tsx",
+          "ms": 13700,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/dashboard/src/__tests__/routes-auth.test.ts",
+          "ms": 13600,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "packages/core/src/__tests__/agent-store.test.ts",
+          "ms": 13400,
+          "package": "@fusion/core"
+        },
+        {
+          "file": "packages/engine/src/__tests__/workspace-merger-idempotency.test.ts",
+          "ms": 12700,
+          "package": "@fusion/engine"
+        },
+        {
+          "file": "packages/engine/src/__tests__/self-healing-workspace.test.ts",
+          "ms": 11800,
+          "package": "@fusion/engine"
+        },
+        {
+          "file": "packages/engine/src/__tests__/pr-response-run.test.ts",
+          "ms": 11600,
+          "package": "@fusion/engine"
+        },
+        {
+          "file": "packages/dashboard/app/components/__tests__/ListView.test.tsx",
+          "ms": 11300,
+          "package": "@fusion/dashboard"
+        },
+        {
+          "file": "plugins/fusion-plugin-compound-engineering/src/__tests__/sync.test.ts",
+          "ms": 11000,
+          "package": "@fusion-plugin-examples/compound-engineering"
+        }
+      ],
+      "measurementFailures": [],
+      "timingSnapshotCapturedAt": "2026-06-25T05:45:08.116Z",
+      "timingNotes": []
     }
   ]
 }