refactor: separate standalone Vite wiring and provider middleware

docs/CURRENT-STATE.md

@@ -1,5 +1,23 @@
 # God's Eye View Current State
 
+## Build configuration and local provider boundaries
+
+`vite.config.js` delegates to `server/standalone/vite.config.js`, which loads
+this checkout's environment and constructs the local providers in their existing
+order. `server/providers/local.js` holds the existing middleware and process
+state; its named exports remain available through the root compatibility entry.
+Provider URLs, key selection, cache behavior, setup restrictions and routes are
+unchanged. Individual provider families remain to be split into smaller modules.
+
+`gods-eye-view/build/vite` is a Node-only export for explicit browser build
+settings: Cesium assets, caller-supplied plugins, browser key defines, server
+binding and document/credential protections. It never reads an environment file
+or constructs providers. The standalone caller owns those choices.
+
+Browser startup now lives in `src/standalone/`. That directory contains only
+browser code; Node configuration remains under `server/`. Application lifecycle
+and viewer export paths are unchanged.
+
 ## Application startup and shutdown
 
 The standalone entry now composes scene setup, controls, layer registration and
@@ -17,8 +35,8 @@ helpers do not import the standalone entry or discover configuration. See
 ## Scoped formatting and package checks
 
 `npm run format` and `npm run format:check` operate on the explicit adopted-file
-list. `npm run check:boundaries` checks the browser dependency graph of all
-current package exports; infrastructure owns its three implementation modules
+list. `npm run check:boundaries` checks the dependency graph of all
+current package exports in their declared browser or Node runtime; infrastructure owns its three implementation modules
 and takes Cesium from the consumer. CI runs both checks on Linux and Windows.
 The standalone app, layer behavior and public export paths remain unchanged.
 See [component ownership and adoption](CODE-BOUNDARIES.md).