release: v0.1.0 — one-click install, keyless boot, in-app Provider Settings (#142)

The first formal release.

- One-click install via Pinokio; keyless boot lands on a live Esri World
  Imagery satellite globe with keyless terrain, with automatic OSM fallback
  and graceful degradation when terrain is unavailable.
- Provider Settings (the POWER UP panel): add, replace, or remove API keys
  inside the app; credential files made owner-only before any secret is
  written; external keys shown read-only; the panel refuses shared or proxied
  servers.
- Keyless capability responses for the optional HUD summary and place search.
- Aircraft-identity voice answers cover operator, type, and route, and say so
  plainly when enrichment is unavailable.
- README rewritten keyless-first; concise 0.1.0 changelog section; CI
  workflow included.

Gates: 2,672 unit tests pass / 0 fail, build clean, tracking regression
108/108, map-source tray QA pass, setup doctor ready.

src/hudSummaryResponse.js

@@ -0,0 +1,35 @@
+export const HUD_SUMMARY_UNCONFIGURED_CODE = 'OPENAI_NOT_CONFIGURED';
+
+/**
+ * Describe the optional HUD summary capability without turning a deliberately
+ * keyless boot into an HTTP failure.
+ *
+ * @param {unknown} apiKey - Candidate server-side OpenAI credential.
+ * @returns {{ statusCode: 200, payload: { configured: false, code: string, error: null, summary: null } }|null}
+ *   A graceful unconfigured response, or null when the provider is configured.
+ */
+export function keylessHudSummaryResponse(apiKey) {
+  if (String(apiKey ?? '').trim()) return null;
+  return {
+    statusCode: 200,
+    payload: {
+      configured: false,
+      code: HUD_SUMMARY_UNCONFIGURED_CODE,
+      error: null,
+      summary: null,
+    },
+  };
+}
+
+/** Return true only for the deliberate, successful no-key capability response. */
+export function isHudSummaryUnconfigured(status, data) {
+  const keys = data !== null && typeof data === 'object' && !Array.isArray(data)
+    ? Object.keys(data)
+    : [];
+  return keys.length === 4
+    && status === 200
+    && data?.configured === false
+    && data?.code === HUD_SUMMARY_UNCONFIGURED_CODE
+    && data?.error === null
+    && data?.summary === null;
+}