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

hugo.toml

@@ -0,0 +1,75 @@
+baseURL = "https://djosen.one/"
+title = "Djosen"
+theme = "hugo-coder"
+locale = "en"
+enableEmoji = true
+
+[pagination]
+pagerSize = 6
+
+[markup.highlight]
+noClasses = false
+
+[markup.goldmark.renderer]
+unsafe = true
+
+[markup.goldmark.extensions.typographer]
+disable = true
+
+[taxonomies]
+category = "categories"
+series = "series"
+tag = "tags"
+author = "authors"
+
+[params]
+author = "Djosen"
+description = "Djosen's personal website"
+keywords = "graphics,rendering,webgpu,gamedev,software engineering"
+info = ["Creative Developer | Game Developer | Software Engineer"]
+colorScheme = "dark"
+hideColorSchemeToggle = true
+customCSS = ["css/custom.css"]
+
+[[params.social]]
+name = "GitHub"
+icon = "fa-brands fa-github fa-2x"
+weight = 1
+url = "https://github.com/inedited"
+
+[[params.social]]
+name = "LinkedIn"
+icon = "fa-brands fa-linkedin fa-2x"
+weight = 2
+url = "https://linkedin.com/in/inedited/"
+
+[[params.social]]
+name = "Email"
+icon = "fa-solid fa-envelope fa-2x"
+weight = 3
+url = "mailto:ineditedofficial@gmail.com"
+
+[[menu.main]]
+name = "Home"
+weight = 1
+url = "/"
+
+[[menu.main]]
+name = "About"
+weight = 2
+url = "about/"
+
+[[menu.main]]
+name = "Projects"
+weight = 3
+url = "projects/"
+
+[[menu.main]]
+name = "Resume"
+weight = 4
+url = "resume/"
+
+[[menu.main]]
+name = "Blog"
+weight = 5
+url = "posts/"