Initial import: Axpert 11.2 reference material and platform blueprint

- TECH_ARCHITECTURE.md: technical blueprint for the new platform
- AI_LAYER_DESIGN_NOTES.md: AI agent, event/action, SQL and audit design
- Axpert 11.2 web runtime source, structure exports and release notes (reference)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Axpert Structures/AxpertRun/Script.txt

@@ -0,0 +1 @@
+alter table tstructs add runtimemod varchar(10);