Add initial web editor app, CLI scripts, and test scaffolding.

This introduces the FastAPI editor implementation and related project setup so the app can be run and validated locally.

Made-with: Cursor

README.md

@@ -1,2 +1,16 @@
 # connectionmachine
+export NODE_OPTIONS=--max-old-space-size=800
+
+## Web text editor
+
+This repo includes a FastAPI-based web editor in `editor/` for editing text files.
+
+Run it from the project root:
+
+```bash
+pipenv run start
+```
+
+Then open [http://localhost:8000](http://localhost:8000).
+