Initial commit — Bar Pivoine cocktail recipe site

Hugo Extended site with 426 cocktail recipes from the open cocktail dataset.
Dark amber/gold editorial aesthetic, Tailwind CSS v4, Alpine.js client-side
search and filtering, HTMX page transitions, Docker + nginx production build.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

layouts/partials/img.html

@@ -0,0 +1,26 @@
+{{/*
+  Usage:
+    {{ partial "img.html" (dict "res" $imgResource "widths" (slice 600 1200) "sizes" "100vw" "class" "w-full h-full object-cover" "alt" "cocktail name" "loading" "lazy") }}
+*/}}
+{{- $res := .res -}}
+{{- $widths := .widths | default (slice 800 1200) -}}
+{{- $sizes := .sizes | default "100vw" -}}
+{{- $class := .class | default "" -}}
+{{- $alt := .alt | default "" -}}
+{{- $loading := .loading | default "lazy" -}}
+
+{{- $entries := slice -}}
+{{- range $widths -}}
+  {{- $img := $res.Resize (printf "%dx webp" .) -}}
+  {{- $entries = $entries | append (printf "%s %dw" $img.RelPermalink .) -}}
+{{- end -}}
+
+<img
+  srcset="{{ delimit $entries ", " }}"
+  sizes="{{ $sizes }}"
+  src="{{ ($res.Resize (printf "%dx webp" (index $widths 0))).RelPermalink }}"
+  alt="{{ $alt }}"
+  loading="{{ $loading }}"
+  decoding="async"
+  class="{{ $class }}"
+/>