feat: refactor health endpoint handling and improve job ID display in backtesting

src/arbitrade/api/routes.py

@@ -765,13 +765,7 @@ async def _dashboard_response(
     )
 
 
-@router.get("/", response_class=HTMLResponse)
+async def _health_response(request: Request) -> HTMLResponse:
-async def home(request: Request) -> HTMLResponse:
-    return await _dashboard_response(request)
-
-
-@router.get("/dashboard/health", response_class=HTMLResponse)
-async def dashboard_health_page(request: Request) -> HTMLResponse:
     return templates.TemplateResponse(
         request=request,
         name="health.html",
@@ -779,11 +773,21 @@ async def dashboard_health_page(request: Request) -> HTMLResponse:
     )
 
 
+@router.get("/", response_class=HTMLResponse)
+async def home(request: Request) -> HTMLResponse:
+    return await _dashboard_response(request)
+
+
 @router.get("/dashboard", response_class=HTMLResponse)
 async def dashboard(request: Request) -> HTMLResponse:
     return await _dashboard_response(request)
 
 
+@router.get("/dashboard/health", response_class=HTMLResponse)
+async def dashboard_health_page(request: Request) -> HTMLResponse:
+    return await _health_response(request)
+
+
 @router.get("/dashboard/backtesting", response_class=HTMLResponse)
 async def dashboard_backtesting_page(request: Request) -> HTMLResponse:
     return templates.TemplateResponse(
@@ -959,6 +963,7 @@ async def dashboard_backtesting_run(request: Request) -> HTMLResponse:
         store = request.app.state.store
         repo = BacktestJobRepository(store)
         job = repo.create_job(str(events_path), config_dict)
+        msg_job = job.id[:8] if job.id else "unknown"
 
         queue = request.app.state.backtest_queue
         await queue.put((job.id or "", str(events_path), config_dict))
@@ -975,7 +980,7 @@ async def dashboard_backtesting_run(request: Request) -> HTMLResponse:
         context = _backtesting_panel_context(
             request,
             status="submitted",
-            message=f"Job {job.id[:8]}... queued. Refresh to see results.",
+            message=f"Job {msg_job}... queued. Refresh to see results.",
             defaults=defaults,
         )
     except ValueError as exc:
@@ -1015,10 +1020,11 @@ async def dashboard_backtesting_job_detail(request: Request, job_id: str) -> HTM
 
     report_html = "<div class='meta'>No report yet</div>"
     if job.report:
+        i = job.id[:8] if job.id else "unknown"
         r = job.report
         report_html = (
             f"<div class='panel'>"
-            f"<div class='label'>Job {job.id[:8]}... Report</div>"
+            f"<div class='label'>Job {i}... Report</div>"
             f"<div class='meta'>Status: {job.status}</div>"
             f"<div class='meta'>Events: {job.events_path}</div>"
             f"<div class='meta'>Processed: {r.get('processed_events', '—')}</div>"