Redesign docs with Apple-native theme; verify content; route CI to self-hosted runner-02

- VitePress: custom theme (SF system fonts, glass nav, soft surfaces, pill buttons,
  light/dark code blocks, refined feature cards, platform showcase + stat strip).
- Replace every emoji across docs and README with inline SVG icons.
- Verify and fix doc accuracy against actual scripts: JSON schema (category+pattern only),
  env-var configuration for json2*/import_* scripts, owasp2json CLI surface.
- Add public assets (logo.svg, favicon.svg, hero-shield.svg) and Shiki haproxy alias.
- Workflows default to self-hosted runner-02 with a configurable fallback to GitHub
  runners via the RUNS_ON repo variable.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.github/workflows/docs.yml

@@ -20,7 +20,7 @@ concurrency:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ${{ fromJSON(vars.RUNS_ON || '["self-hosted","runner-02"]') }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -55,7 +55,7 @@ jobs:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
     needs: build
-    runs-on: ubuntu-latest
+    runs-on: ${{ fromJSON(vars.RUNS_ON || '["self-hosted","runner-02"]') }}
     steps:
       - name: Deploy to GitHub Pages
         id: deployment