migrate to decoupled Blowfish layout, fix TOC scrollspy, and update docs

- Theme Decoupling & Cleanup:
      - Fully decoupled and vendored the Blowfish theme directly into root directories (layouts/,
  assets/, static/, data/, i18n/).
      - De-registered and cleaned up legacy Git submodules (themes/blowfish, themes/hugo-admonitions)
  from the Git index to protect the build from upstream breakages.
      - Configured .gitignore to ignore development preview symlinks (content, static,
  config/_default/menus.en.toml), build folders (public/, resources/), and locks.

    - TOC & Layout Fixes:
      - Replaced the custom layouts/_default/single.html template with the Blowfish default to restore
  native container widths and the side-by-side flex layout.
      - Restored TOC to float on the right sidebar on desktop viewports and render inline on mobile
  viewports.
      - Fixed a parameter resolution bug in layouts/partials/toc.html by checking both .Site.Params.
  smartTOC and .Site.Params.article.smartTOC (where it is defined in params.toml).
      - Upgraded the TOC scrollspy JavaScript to target all '#TableOfContents' containers on the page,
  enabling highlight tracking on both desktop and mobile layouts.

    - Documentation Updates (README.md):
      - Restored YAML front matter metadata block at the top.
      - Added detailed notes on the CI/CD build process and Gitea runner deployment targets
  (/srv/www/docs-public and /srv/www/docs-private).
      - Added a categorized and sorted "Shortcodes Quick Reference" table at the top of the shortcodes
  section (ordered by Custom, Hugo Default, and Blowfish).
      - Documented custom shortcodes (Include, Screenshot, Raw HTML) and missing Hugo default
  shortcodes (Highlight, Instagram, Param, Ref, Relref, Twitter, Vimeo, Youtube).
      - Restructured headings to ensure all sub-shortcodes are H3, removed block break tags (<br/>),
  and appended horizontal separators (---) after H2 sections.

config/_default_original/hugo.toml

@@ -0,0 +1,98 @@
+# -- Site Configuration --
+# Refer to the theme docs for more details about each of these parameters.
+# https://blowfish.page/docs/getting-started/
+
+# theme = "blowfish"
+baseURL = "https://dev.wompmacho.com/"
+defaultContentLanguage = "en"
+
+# pluralizeListTitles = "true" # hugo function useful for non-english languages, find out more in  https://gohugo.io/getting-started/configuration/#pluralizelisttitles
+
+enableRobotsTXT = true
+summaryLength = 0
+
+buildDrafts = false
+buildFuture = false
+
+enableEmoji = true
+
+# googleAnalytics = "G-XXXXXXXXX"
+
+[pagination]
+  pagerSize = 100
+
+[imaging]
+  anchor = 'Center'
+
+[taxonomies]
+  tag = "tags"
+  category = "categories"
+  author = "authors"
+  series = "series"
+
+[sitemap]
+  changefreq = 'daily'
+  filename = 'sitemap.xml'
+  priority = 0.5
+
+[outputs]
+  home = ["HTML", "RSS", "JSON"]
+
+[related]
+  threshold = 0
+  toLower = false
+
+    [[related.indices]]
+        name = "tags"
+        weight = 100
+
+    [[related.indices]]
+        name = "categories"
+        weight = 100
+
+    [[related.indices]]
+        name = "series"
+        weight = 50
+
+    [[related.indices]]
+        name = "authors"
+        weight = 20
+
+    [[related.indices]]
+        name = "date"
+        weight = 10
+
+    [[related.indices]]
+      applyFilter = false
+      name = 'fragmentrefs'
+      type = 'fragments'
+      weight = 10
+
+[module]
+  [[module.mounts]]
+    source = "content"
+    target = "content"
+  [[module.mounts]]
+    source = "/srv/docs/private"
+    target = "content/private"
+  [[module.mounts]]
+    source = "/srv/docs/public/projects/hugo"
+    target = "content/public/projects/hugo"
+  [[module.mounts]]
+    source = "assets"
+    target = "assets"
+  [[module.mounts]]
+    source = "/srv/configs"
+    target = "assets/configs"
+  [[module.mounts]]
+    source = "/srv/dev/hugo/website"
+    target = "assets/dev/hugo/website"
+
+[security]
+  [security.funcs]
+    readFile = [".*"]
+    "os.Stat" = [".*"]
+    "os.ReadDir" = [".*"]
+  [security.exec]
+    allow = ['^git$', '^go$', '^npx$', '^postcss$', '^asciidoctor$']
+