Fix template response usage

app/routes/deployments.py

@@ -0,0 +1,41 @@
+from fastapi import APIRouter, HTTPException, Request
+from fastapi.responses import HTMLResponse
+from fastapi.templating import Jinja2Templates
+
+from app.db.apps import get_deployment, get_deployments
+
+router = APIRouter()
+
+templates = Jinja2Templates(directory="app/templates")
+
+
+@router.get("/deployments", response_class=HTMLResponse)
+async def deployments_page(request: Request):
+    deployments = get_deployments()
+
+    return templates.TemplateResponse(
+        request,
+        "deployments.html",
+        {
+            "deployments": deployments,
+        },
+    )
+
+
+@router.get("/deployments/{deployment_id}", response_class=HTMLResponse)
+async def deployment_detail_page(
+    request: Request,
+    deployment_id: int,
+):
+    deployment = get_deployment(deployment_id)
+
+    if not deployment:
+        raise HTTPException(status_code=404, detail="Deployment not found")
+
+    return templates.TemplateResponse(
+        request,
+        "deployment-detail.html",
+        {
+            "deployment": deployment,
+        },
+    )