Merge main into PR #621 (ChatGPT OAuth for Realtime voice)

Resolve conflicts with the voice-core captions, panel resize and MCP
panel key changes by keeping both sides.

src/keySetupCore.mjs

@@ -28,7 +28,7 @@ export const KEY_SETUP_APPEND_HEADER =
  * Provider credentials, in display order — most magic per
  * minute first. `tier` mirrors the README's color legend: 'metered' (🔴) is a
  * billing-enabled account, 'free' (🟡) is a register-and-paste key.
- * `clientExposed` marks the two keys that are injected into the browser
+ * `clientExposed` marks the keys that are injected into the browser
  * bundle by design (restrict them at the provider, per SECURITY.md).
  * `hidden` keeps advanced configuration out of the panel and missing-key count.
  */
@@ -101,6 +101,16 @@ export const KEY_SETUP_KEYS = Object.freeze([
     envVars: Object.freeze(['OPENSKY_CLIENT_ID', 'OPENSKY_CLIENT_SECRET']),
     tier: 'free',
   }),
+  Object.freeze({
+    id: 'mapillary',
+    title: 'MAPILLARY',
+    unlocks:
+      'Street-level imagery and coverage in the Street Level layer. Free: register an app in the Mapillary developer dashboard and paste its Client Token',
+    getUrl: 'https://www.mapillary.com/dashboard/developers',
+    envVars: Object.freeze(['MAPILLARY_CLIENT_TOKEN']),
+    tier: 'free',
+    clientExposed: true,
+  }),
   Object.freeze({
     id: 'launch-library',
     title: 'LAUNCH LIBRARY',