[mayuriphad]

The main UI route calls templates.TemplateResponse("index.html", {"request": request}). That legacy signature was deprecated in Starlette 0.29 and removed in 1.0, so on an environment with a current Starlette (for example the unpinned requirements-strixhalo.txt, or a manually upgraded venv) / fails to render:

Error rendering main UI page: unhashable type: 'dict'
  File ".../starlette/templating.py", line 148, in TemplateResponse
    template = self.get_template(name)

and the user gets the "Internal Server Error" fallback page. The call is now templates.TemplateResponse(request, "index.html"), which Starlette (0.29+, including 1.x) accepts and which still injects request into the template context. The fastapi<0.116 pins in the other requirements files already resolve to a Starlette that supports it.

Fixes #179

Checked with Starlette 1.7.0: the old call raises TypeError: unhashable type: 'dict', the new call returns 200.

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