Merge upstream/main (v0.2.1) into pr/mapillary-layer

Brings in 123 commits from main, including the v0.2.0 and v0.2.1 releases
(MCP server and tool catalog, server security hardening, build hygiene).

Conflicts:
- package.json: kept main's script order and added this PR's
  qa:panel-resize and qa:street-level; exports keep both sides (main's
  tools/view entries and this PR's street-level and Mapillary entries).
- src/tooling/viteBuild.test.mjs: kept this PR's Mapillary-token define
  assertion and main's new wildcard-host allowedHosts assertions.
- CHANGELOG.md: main now has release sections; this PR's entries go under
  [Unreleased].

Checks after the merge: doctor, format:check, check:boundaries,
layer-token:check (28 published, 1 new: street-level 0), npm test (5726
pass), build, the Windows job's focused tests (70 pass), qa:panel-resize,
and the keyless street-level gate. The new CSP allows Mapillary (https:
connect/img, blob workers). The keyed gate stops at coverage locally
because the dev .env Mapillary token is invalid (upstream 403), not because
of the merge.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

server/standalone/vite.config.js

@@ -1,8 +1,11 @@
 import { fileURLToPath } from 'node:url';
 import { defineConfig, loadEnv } from 'vite';
+import { resolveAllowedHosts } from '../../build/allowedHosts.js';
 import { createBrowserViteConfig } from '../../build/vite.js';
 import { localProviderPlugins } from '../providers/local.js';
+import { localMcpPlugin } from '../mcp/plugin.js';
 import { apiNotFoundPlugin } from './api-not-found.js';
+import { standaloneVoiceTools } from './voiceTools.js';
 
 const root = fileURLToPath(new URL('../../', import.meta.url));
 
@@ -13,12 +16,17 @@ export default defineConfig(({ command, mode }) => {
     if (process.env[key] === undefined) process.env[key] = value;
   }
   return createBrowserViteConfig({
-    plugins: [...localProviderPlugins(), apiNotFoundPlugin()],
+    plugins: [
+      ...localProviderPlugins({ realtime: { tools: standaloneVoiceTools() } }),
+      localMcpPlugin(),
+      apiNotFoundPlugin(),
+    ],
     googleApiKey: process.env.GOOGLE_MAPS_API_KEY,
     cesiumToken: process.env.CESIUM_ION_TOKEN,
     mapillaryToken: process.env.MAPILLARY_CLIENT_TOKEN,
     host: process.env.HOST,
     port: process.env.PORT,
+    allowedHosts: resolveAllowedHosts(process.env.GEV_ALLOWED_HOSTS),
     command,
   });
 });

server/standalone/voiceTools.js

@@ -0,0 +1,18 @@
+/**
+ * The voice session's tools for the standalone server: the app actions plus
+ * the catalog tools voice offers (see src/tools/surfaces.js), which the
+ * browser runs through the same catalog.
+ */
+
+import {
+  coreTools,
+  toFunctionTools,
+  toolsForSurface,
+} from '../../src/tools/index.js';
+import { realtimeSessionTools } from '../providers/openai/tools.js';
+
+export function standaloneVoiceTools() {
+  return realtimeSessionTools(
+    toFunctionTools(toolsForSurface(coreTools, 'voice')),
+  );
+}