DocsBrokenWindow POC: Convert static HTML output to PDF

[cwarnermm]

This PR introduces a robust and flexible workflow for converting the static HTML output generated by Sphinx into clean, styled PDF documents, suitable for air-gapped and offline customer environments.

Key Technologies and Approach

WeasyPrint is used as the core HTML-to-PDF rendering engine. It offers:

• Full support for modern HTML and CSS
• Clean typography and print layout control
• Offline operation (no dependency on external assets or CDNs) for air-gapped and restricted access

BeautifulSoup is used to:

• Strip out internet-only elements (e.g., deployment badges, external links)
• Remove navigation components like "On This Page" sidebars
• Normalize inline image behavior and heading structures

Custom PDF builder script (generate_pdfs.py):

• Merges multiple HTML sections into a single printable HTML document per guide
• Injects a styled table of contents with page estimates
• Applies print-optimized CSS and layout rules
• Outputs clean PDFs into a dedicated /pdfs directory

Output Guides - 2 PDFs are generated:

• Operations content (Deployment, Security, Administration)
• Application content (Use Cases, End User, Integrations)

Each PDF is self-contained, styled, and optimized for offline distribution. More iteration is needed on PDF look and feel.

[cwarnermm]

Closing in favour of other air-gapped/restricted approaches to docs.