restructure: flatten project, add ARCHITECTURE.md, update DEVY.md

- Moved from session-analytics-web/ subfolder to root
- Renamed to token-analytics
- Added deploy.sh, ARCHITECTURE.md
- Moved export.mjs into jsonl-sync/

.gitignore

@@ -1,21 +1,10 @@
-# Node
-node_modules/
-
-# .NET
-bin/
-obj/
+/.vs/
+/bin/
+/obj/
+/publish/
 *.user
 
-# Data
-sessions.db
-state.json
+/jsonl-sync/node_modules/
+/jsonl-sync/sessions.db
+/jsonl-sync/state.json
 
-# IDE
-.vs/
-.vscode/
-*.swp
-*.swo
-
-# OS
-.DS_Store
-Thumbs.db