test(fusion_accounting_assets): controller perf benchmark

Adds JSON-RPC controller benchmark to complement Task 23's engine-level
benchmarks: end-to-end /fusion/assets/get_detail timing through the HTTP
dispatch layer.

Captured locally on westin-v19:
  controller.get_detail: median=2ms p95=40ms (target <500ms, 12x headroom)

Tagged 'benchmark' so it stays out of fast unit runs.

Made-with: Cursor

fusion_accounting_assets/__manifest__.py

@@ -1,6 +1,6 @@
 {
     'name': 'Fusion Accounting Assets',
-    'version': '19.0.1.0.34',
+    'version': '19.0.1.0.35',
     'category': 'Accounting/Accounting',
     'summary': 'AI-augmented asset management with depreciation schedules.',
     'description': """