brand: adopt Lightwell aperture as the Hope brand mark

- web/brand/hope-mark.svg: canonical adaptive mark (light/dark)
- web/brand/hope-logo-horizontal.svg: lockup with rounded wordmark
- web/brand/hope-icon.svg: forced-dark icon-grid-tuned source
- favicon.svg: small-size tuned aperture
- manifest + index.html: PNG icons (192/512), apple-touch-icon, theme #1C191F

web/brand/hope-icon.svg

@@ -0,0 +1,28 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512">
+  <!--
+    Hope app icon — forced-dark Lightwell aperture, icon-grid tuned
+    (capsule scaled up ~40% vs the standard mark; full-bleed background,
+    no transparency). Colors: Nearlight dark tokens.
+  -->
+  <defs>
+    <linearGradient id="core" x1="0" y1="0" x2="0" y2="1">
+      <stop offset="0" stop-color="#E3A2BC" stop-opacity="0.35"/>
+      <stop offset="0.5" stop-color="#E3A2BC" stop-opacity="1"/>
+      <stop offset="1" stop-color="#E3A2BC" stop-opacity="0.55"/>
+    </linearGradient>
+    <radialGradient id="halo" cx="0.5" cy="0.5" r="0.5">
+      <stop offset="0" stop-color="#E3A2BC" stop-opacity="0.34"/>
+      <stop offset="0.55" stop-color="#E3A2BC" stop-opacity="0.11"/>
+      <stop offset="1" stop-color="#E3A2BC" stop-opacity="0"/>
+    </radialGradient>
+    <radialGradient id="hotspot" cx="0.5" cy="0.5" r="0.5">
+      <stop offset="0" stop-color="#E3A2BC" stop-opacity="0.6"/>
+      <stop offset="1" stop-color="#E3A2BC" stop-opacity="0"/>
+    </radialGradient>
+  </defs>
+  <rect width="512" height="512" fill="#1C191F"/>
+  <rect x="116" y="46" width="280" height="420" rx="140" fill="#28232E" stroke="#BFB2C6" stroke-width="8"/>
+  <ellipse cx="256" cy="256" rx="185" ry="225" fill="url(#halo)"/>
+  <rect x="221" y="168.5" width="70" height="175" rx="35" fill="url(#core)"/>
+  <ellipse cx="256" cy="256" rx="82" ry="103" fill="url(#hotspot)"/>
+</svg>