docs: update license from AGPL to PMPL

- Replace AGPL-3.0-or-later with PMPL-1.0-or-later
- Update license name and URLs
- Align with palimpsest-license standard

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: Your Name

README.adoc

@@ -3,7 +3,7 @@
 
 = Neural Foundations
 
-image:https://img.shields.io/badge/license-AGPL--3.0-blue.svg[AGPL-3.0,link="https://www.gnu.org/licenses/agpl-3.0"] image:https://img.shields.io/badge/philosophy-Palimpsest-purple.svg[Palimpsest,link="https://github.com/hyperpolymath/palimpsest-licence"]
+image:https://img.shields.io/badge/license-AGPL--3.0-blue.svg[PMPL-1.0,link="https://github.com/hyperpolymath/palimpsest-license"] image:https://img.shields.io/badge/philosophy-Palimpsest-purple.svg[Palimpsest,link="https://github.com/hyperpolymath/palimpsest-licence"]
 :author: hyperpolymath
 :revnumber: 0.1.0
 :revdate: 2025-12-26