Proposed 1.1.3-0

This release reworks the markdown page rendering system with four improvements:
n-level deep routing, automatic table-of-contents generation, standardized code
block styling, and GitHub Flavored Markdown table support.

Features

• N-level deep markdown routing — Replaced the fixed two-level routing
  ([level1] / [level1]/[level2]) with a single [...slug] catch-all route
  that supports markdown pages at any directory depth. A new recursive
  buildCatchAllStaticPaths function walks config/docs and pages
  directories to collect .md files at any nesting level. The sidebar menu now
  also recursively scans directories to surface deeply nested pages.

• Automatic table of contents — The existing but unused PageTOC component
  is now wired into the catch-all markdown page. It scans rendered headings
  (h1–h6) via a MutationObserver and populates the right-hand "On This Page"
  anchor nav automatically. Fixed a timing bug where headings were scanned
  before the markdown content was in the DOM, and fixed anchor IDs that were
  incorrectly prefixed with # (producing ##id in URLs).

• Standardized code block styling — Markdown fenced code blocks now render
  with a toolbar header matching the site's CodeHighlight component: a
  language icon, filename or language label, and a copy-to-clipboard button. A
  new remarkCodeMeta remark plugin preserves the fence info string so metadata
  like ```bash filename="deploy.sh" is parsed and displayed. The Prism
  theme respects dark mode via next-themes, and registered languages now
  include bash, css, scss, jsx, tsx, typescript, yaml, handlebars, and more.

• Markdown table support — Added remark-gfm to all ReactMarkdown
  instances across the codebase (17 files). Pipe tables, strikethrough,
  autolinks, and task lists now render correctly. Tables are styled via Tailwind
  Typography's .prose table defaults.

Changed

• Deleted src/app/pages/[level1]/index.tsx and
  src/app/pages/[level1]/[level2]/index.tsx (replaced by [...slug]).
• Removed buildL1StaticPaths, buildL2StaticPaths, and the SubPageType
  interface from src/app/components/util/index.ts.
• ComponentGuidelines now uses MarkdownComponents and the remark plugins
  for consistent rendering.

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• Updates to markdown parsing 299652b
• Creating 1.1.3 release branch eff94d6

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v1.1.2...v1.1.3-0