chore: clean repo for public distribution

- Remove verbatim Nate Herk transcript from .raw/ (copyright)
- Rewrite wiki/sources page as synthesis + attribution + link to original
- Keeps all original concept/entity pages (our synthesis, not third-party content)
- .raw/ folder preserved for users to add their own sources
- This repo is now safe to share publicly as a plugin/skill library

.obsidian/app.json

@@ -10,4 +10,4 @@
     "WIKI.md",
     "Welcome.md"
   ]
-}
+}