initial import: read-only gufo + vLLM dashboard

Single-file FastAPI proxy plus a no-CDN vanilla-JS page for watching a gufo
server and a vLLM server side by side: one Prometheus parser (class Prom) with
per-engine field maps, measured Δcounter/Δt rates for engines that export no
rate gauge, and strict read-only GET-only routing. Engines are opt-in via
*_BASE_URL — unset means no panel, no poll, and a 404 {"configured": false}
without dialling.

Includes the container image and CI so the dashboard can be deployed as an
image rather than a checkout:

- Containerfile: uv-locked two-stage build on python:3.14-slim, non-root
  (uid 10001), binds 8090 (8000 is vLLM's port in this fleet), healthcheck on
  /api/config so a dead engine never marks the dashboard unhealthy. No frontend
  build stage — static/index.html is bundler-free by design and is copied as-is.
- .gitea/workflows/build-and-push.yml: publishes
  gitea.reeseapps.com/Experimental/llm-monitor on main + release tags.

114 tests, no network and no real engines required.

LLM-Generated: true

requirements.txt

@@ -0,0 +1,80 @@
+# Generated from uv.lock — DO NOT EDIT BY HAND.
+#   uv lock                      # after changing pyproject.toml
+#   uv export --no-dev --no-hashes > requirements.txt
+# uv users do not need this file: 'uv sync' installs straight from uv.lock.
+# It exists so a host without uv can still: pip install -r requirements.txt
+
+# This file was autogenerated by uv via the following command:
+#    uv export --no-dev --no-hashes
+annotated-doc==0.0.5
+    # via fastapi
+annotated-types==0.8.0
+    # via pydantic
+anyio==4.15.1
+    # via
+    #   httpx
+    #   starlette
+    #   watchfiles
+certifi==2026.7.22
+    # via
+    #   httpcore
+    #   httpx
+click==8.5.0
+    # via uvicorn
+exceptiongroup==1.3.1 ; python_full_version < '3.11'
+    # via anyio
+fastapi==0.143.2
+    # via llm-monitor
+h11==0.16.0
+    # via
+    #   httpcore
+    #   uvicorn
+httpcore==1.0.9
+    # via httpx
+httptools==0.9.0
+    # via uvicorn
+httpx==0.28.1
+    # via llm-monitor
+idna==3.20
+    # via
+    #   anyio
+    #   httpx
+opentelemetry-api==1.45.1
+    # via fastapi
+pydantic==2.14.1
+    # via fastapi
+pydantic-core==2.50.1
+    # via pydantic
+python-dotenv==1.2.4
+    # via uvicorn
+pyyaml==6.0.3
+    # via uvicorn
+starlette==1.7.0 ; python_full_version < '3.11'
+    # via fastapi
+starlette==1.8.0 ; python_full_version >= '3.11'
+    # via fastapi
+typing-extensions==4.16.0
+    # via
+    #   anyio
+    #   exceptiongroup
+    #   fastapi
+    #   opentelemetry-api
+    #   pydantic
+    #   pydantic-core
+    #   starlette
+    #   typing-inspection
+    #   uvicorn
+typing-inspection==0.4.4
+    # via
+    #   fastapi
+    #   pydantic
+uvicorn==0.54.0
+    # via llm-monitor
+uvloop==0.23.0 ; platform_python_implementation != 'PyPy' and sys_platform != 'cygwin' and sys_platform != 'win32'
+    # via uvicorn
+watchfiles==1.3.0
+    # via uvicorn
+websockets==16.1.1 ; python_full_version < '3.11'
+    # via uvicorn
+websockets==17.2 ; python_full_version >= '3.11'
+    # via uvicorn