deploy_skill: soporte para Coolify v4.1.2 (API /applications 404) + flujo UI Playwright

Aprendido desplegando cotizador (Next.js+FastAPI+Postgres, Docker Compose,
repo privado) en coolify.urieljareth.org (v4.1.2):

- Documenta que /applications/* devuelve 404 en esta instancia y que configurar
  apps git build-from-source solo es posible por la UI web.
- Nuevos scripts scripts/coolify-ui/: coolify-login.mjs (guarda storageState) y
  Configure-CoolifyComposeApp.mjs (build pack -> Docker Compose, Reload Compose
  File, env vars por Developer view, dominios por servicio).
- references/coolify-4.1.2-notes.md: mapa de API funcional/404, gotchas (BOM
  UTF-8 rompe el parser YAML de Coolify; Reload Compose File obligatorio; pin de
  dominios por servicio o 503; no encolar deploys concurrentes; PowerShell
  [IO.File]::ReadAllText para payloads de llaves).
- env.local.template.ps1: COOLIFY_EMAIL/COOLIFY_PASSWORD para la UI.
- SKILL.md/TOOLS.md: seccion "instance reality" y flujo UI paso a paso.

Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>

deploy_skill/references/templates/Dockerfile.python

@@ -0,0 +1,24 @@
+# Minimal compliant Dockerfile for a Python app deployed to this Coolify instance.
+#
+# Hard rules followed (see docs/AGENTS-coolify-apps.md):
+#   - No published host ports 80/443 (Traefik routes them).
+#   - Real listening port is set via ports_exposes in Coolify (here 8080).
+#   - Healthcheck endpoint must NOT depend on the DB being reachable at boot.
+
+FROM python:3.12-slim AS build
+WORKDIR /app
+ENV PIP_NO_CACHE_DIR=1
+COPY requirements.txt .
+RUN pip install --prefix=/install -r requirements.txt
+
+FROM python:3.12-slim AS run
+WORKDIR /app
+ENV PYTHONUNBUFFERED=1
+ENV PORT=8080
+COPY --from=build /install /usr/local
+COPY . .
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 --start-period=20s \
+  CMD python -c "import urllib.request,sys; urllib.request.urlopen('http://localhost:8080/health'); sys.exit(0)" || exit 1
+EXPOSE 8080
+# Adjust to your framework: gunicorn, uvicorn, fastapi, etc.
+CMD ["gunicorn", "-b", "0.0.0.0:8080", "app:app"]