Migrate Vite SPA to Hugo (hugo-coder, dark) with WebGPU background

- Hugo static site at root: config, content (home/about/resume/blog + 5 projects),
  data/resume.yaml, custom layouts (gpu background, resume renderer, projects list),
  dark theme with canvas behind content
- gpu-bg/: extracted WebGPU/WebGL2 spiral engine as a Vite sub-package; slim bootstrap
  drops router/overlay/text renderer; fixed uniforms (scene0/dim0); self-contained engine.js
- archive/: retired Vite SPA preserved (router, overlay, data, engine/text orphaned)
- 3-stage Dockerfile (node -> hugo extended/dart-sass -> nginx), static nginx config
- DEPLOYMENT.md handover + README rewrite; pre-hugo rollback tag

layouts/projects/list.html

@@ -0,0 +1,37 @@
+{{ define "title" }}
+  {{ .Title }} · {{ .Site.Title }}
+{{ end }}
+{{ define "content" }}
+<section class="container list">
+  <header>
+    <h1 class="title">
+      <a class="title-link" href="{{ .Permalink | safeURL }}">
+        {{ .Title }}
+      </a>
+    </h1>
+  </header>
+
+  {{ .Content }}
+
+  {{ range .Pages.ByDate.Reverse }}
+  <div class="project-card">
+    {{ if .Params.period }}
+    <p class="project-period">{{ .Params.period }}</p>
+    {{ end }}
+    <h2 class="project-name">
+      <a class="title-link" href="{{ .RelPermalink }}">{{ .Title }}</a>
+    </h2>
+    {{ if .Params.description }}
+    <p class="project-desc">{{ .Params.description }}</p>
+    {{ end }}
+    {{ if .Params.tags }}
+    <p class="project-tags">
+      {{ range .Params.tags }}
+      <span class="pill">{{ . }}</span>
+      {{ end }}
+    </p>
+    {{ end }}
+  </div>
+  {{ end }}
+</section>
+{{ end }}