Add HTML/markdown versions of papers on site

Nobody has claimed this yet.

## Motivation

Papers are currently linked to PDFs (Google Drive). We should add dedicated web pages for each paper with the markdown/HTML content rendered on-site.

**Benefits:**
- Better reading experience — mobile-friendly, accessible, no PDF viewer required
- SEO — content is indexed by search engines rather than locked in an opaque PDF
- Easy deep-linking to specific sections
- Consistent styling with the rest of the site

**Tradeoffs to consider:**
- Formatting-heavy PDFs (tables, figures, sidebars) may need care when converting
- Maintenance: paper updates need to be applied to both the web version and the PDF

## Approach

We already have the markdown source for most papers. Pattern would follow `/papers/tech` (paper 5), which already has a dedicated page. Each paper gets a route like `/papers/1` or `/papers/what-and-why`, rendered with the site layout. Keep the Drive PDF link as a "download / print version" option alongside.

## Papers

- [ ] Paper 1 — What & Why of a Second Renaissance
- [ ] Paper 2 — How of a Second Renaissance
- [ ] Paper 3 — From Polycrisis to Metacrisis
- [ ] Paper 4 — Developmental Spaces
- [ ] Paper 5 — In Tech We Trust (already done ✓)

Start by examining the existing /papers/tech page for Paper 5 and the markdown sources for Papers 1–4. Follow that page’s site-layout and route pattern, keeping each paper’s Google Drive PDF as a download or print option. Done means Papers 1–4 have readable on-site HTML/markdown pages with appropriate routes and the listed papers are updated accordingly.

Written by the indexing model from the issue text.