Add spatial building conversations and inspectable evidence

server/providers/openai.js

@@ -2,6 +2,7 @@ import { defaultSourceRoot } from './common/source-root.js';
 import { handleHudSummary } from './openai/hud-summary.js';
 import { createDebugLogHandler } from './openai/debug-log.js';
 import { createRealtimeTokenHandler } from './openai/realtime.js';
+import { createSpatialAnswerHandler } from './openai/spatial-answer.js';
 
 /**
  * Vite plugin: OpenAI Realtime ephemeral client secret.
@@ -16,6 +17,7 @@ function openAiRealtimeProxy({
 } = {}) {
   function install(middlewares) {
     middlewares.use('/api/openai/hud-summary', handleHudSummary);
+    middlewares.use('/api/openai/spatial-answer', createSpatialAnswerHandler());
 
     middlewares.use(
       '/api/realtime/debug-log',