feat: convert mdbook to Grav format (199 pages)

Converted from mdbook src/ in input/ to Grav pages/ format:
- Added YAML frontmatter to all pages
- Created numbered folder structure (01.home, 02.Bylaws.*, etc.)
- Preserved all content from Bylaws, Handbook, OperatingAgreements,
  Policies, and JointVenture sections

super ultra big merge completed. scope of work clearly defined. let's go build!

Assisted-by: GLM-5 via Crush <crush@charm.land>

pages/16.Handbook.Board.policies.README/default.md

@@ -0,0 +1,22 @@
+---
+title: 'tsg-policies'
+menu: 'tsg-policies'
+---
+
+# tsg-policies
+
+Policies that apply across the TSYS Group Entities.
+
+Including but not limited to
+
+* IT security
+* Equal opportunity 
+* Federal contracting
+* Insider trading
+
+
+This is a MASSIVE WIP
+
+It's sourced from all over the internet. 
+
+The material at https://governance.turnsys.com is authorative.