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/hud.js

@@ -19,6 +19,7 @@ import { CITY_POIS } from './locations.js';
 import { composeLocalityTag } from './hudLocality.js';
 import { ellipsoidalToMslDisplayM, ensureGeoidReady, geoidHeight } from './data/geoid.js';
 import { getBasemapLabelContext } from './voice/gevActions.js';
+import { isHudSummaryUnconfigured } from './hudSummaryResponse.js';
 
 /** Color palettes keyed by shader mode; applied as CSS custom properties. */
 const HUD_COLORS = {
@@ -665,10 +666,14 @@ export class IntelHUD {
         signal: controller.signal,
       });
       const data = await response.json().catch(() => null);
+      if (revision !== this._summaryRevision) return;
+      if (isHudSummaryUnconfigured(response.status, data)) {
+        this._setSummaryText(fallbackText, animate);
+        return;
+      }
       if (!response.ok || !data?.summary) {
         throw new Error(data?.error || `HTTP ${response.status}`);
       }
-      if (revision !== this._summaryRevision) return;
       this._setSummaryText(data.summary, animate);
     } catch (error) {
       if (error?.name !== 'AbortError') {