chore: bun as primary JS runtime (Makefile, docs); e2e+coverage verified under bun

web/README.md

@@ -8,8 +8,8 @@ to the REST API under `/api` and the `/ws` websocket described in
 
 ```
 cd web
-npm install
-npm run dev
+bun install
+bun run dev
 ```
 
 Dev server proxies `/api` and `/ws` to `http://localhost:8686`
@@ -18,7 +18,7 @@ Dev server proxies `/api` and `/ws` to `http://localhost:8686`
 ## Build
 
 ```
-npm run build
+bun run build
 ```
 
 Type-checks with `tsc --noEmit`, bundles to `web/dist/` (the daemon serves