fix(docs): re-root relative image paths in rendered docs

Rendered AsciiDoc emits relative image paths (e.g.
image::docs/workflow-diagram.svg → <img src="docs/workflow-diagram.svg">).
Doc pages are served under clean URLs like /spec-driven-development/, so the
browser resolves that against the route → /spec-driven-development/docs/...
→ 404; the workflow diagram silently went missing on the Spec-Driven
Development pages (EN + DE). Prefix relative <img> sources with the site
base after loading, matching the asset's real location
(/Semantic-Anchors/docs/...). Absolute, protocol, data and hash URLs are
left untouched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: raifdmueller

website/src/components/doc-page.js

@@ -78,6 +78,18 @@ export async function loadDocContent(docPath) {
       link.setAttribute('rel', 'noopener noreferrer')
     })
 
+    // Re-root relative image paths. Rendered AsciiDoc emits paths like
+    // "docs/workflow-diagram.svg" relative to the document, but doc pages are
+    // served under clean URLs (e.g. /spec-driven-development/), so the browser
+    // resolves the relative path against the route and 404s. Prefix the site
+    // base so it points at the asset's real location. Absolute, protocol and
+    // data URLs are left untouched.
+    contentEl.querySelectorAll('img[src]').forEach((img) => {
+      const src = img.getAttribute('src')
+      if (!src || /^(https?:|data:|\/|#)/.test(src)) return
+      img.setAttribute('src', `${import.meta.env.BASE_URL}${src}`)
+    })
+
     // Attach click-to-load handlers for any YouTube placeholders in the doc.
     // Keeps us DSGVO-compliant: YouTube is only contacted after user consent.
     hydrateYouTubeFacades(contentEl)

website/src/components/doc-page.test.js

@@ -42,4 +42,22 @@ describe('doc-page', () => {
       'Failed to Load Documentation'
     )
   })
+
+  it('re-roots relative image paths to the site base, leaving absolute ones', async () => {
+    global.fetch.mockResolvedValue({
+      ok: true,
+      text: async () =>
+        '<h1>Spec</h1><img src="docs/workflow-diagram.svg" alt="d"><img src="https://x.test/a.png" alt="ext">',
+    })
+
+    await loadDocContent('docs/spec-driven-workflow.adoc')
+
+    const base = import.meta.env.BASE_URL
+    const rel = document.querySelector('#doc-content img[alt="d"]')
+    const ext = document.querySelector('#doc-content img[alt="ext"]')
+    // relative AsciiDoc image path must be re-rooted (clean-URL routes break it otherwise)
+    expect(rel.getAttribute('src')).toBe(`${base}docs/workflow-diagram.svg`)
+    // absolute/external sources are left untouched
+    expect(ext.getAttribute('src')).toBe('https://x.test/a.png')
+  })
 })