chore: archive completed OpenSpec changes

Archive all 6 deployed changes following OpenSpec workflow:
- add-minimal-hugo-site → hugo-site spec
- add-multilingual-support → internationalization spec
- migrate-site-content → content-migration + image-assets specs
- add-custom-bootstrap-styling → styling spec
- add-cv-page → content-management spec
- simple-deployment → deployment spec

All changes moved to archive/ with 2025-10-30 date prefix.
Created 7 capability specs reflecting deployed functionality.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

openspec/changes/archive/2025-10-30-add-cv-page/proposal.md

@@ -0,0 +1,18 @@
+# Add CV Page
+
+## Why
+The site currently lacks a dedicated curriculum vitae page for HR professionals and recruiters. A CV page with secure download instructions and a navigation menu entry will make the site more complete and professional, enabling visitors to easily access professional credentials.
+
+## What Changes
+- Add new CV content page at `/content/cv.md` with German text explaining secure CV download process
+- Add CV navigation link to site menu configuration in `hugo.toml`
+- Content will explain Tresorit secure download process and email verification requirement
+- Page will follow existing single.html layout pattern with centered, readable content
+
+## Impact
+- Affected specs: `content-management` (new capability)
+- Affected code:
+  - `/content/cv.md` (new file)
+  - `/hugo.toml` (menu configuration)
+  - `/layouts/partials/nav.html` (already supports menu items via iteration)
+- User-facing: New "Lebenslauf" navigation link and dedicated CV page