Character portrait

Crop-and-zoom picture editor on the Concept page, stored (re-encoded to a
256 px WebP data URL) inside the character; shown on the sheet header, in
the lobby player bar and as token icon on the map.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HJhXuLD2Z6hv3Wqeq9UL9K

frontend/src/MapView.jsx

@@ -6,7 +6,7 @@ const clamp = (v, a, b) => Math.min(b, Math.max(a, v))
 
 // Map with pan (drag the background), zoom (wheel / pinch) and draggable tokens. Coordinates are image pixels.
 // Everybody pans and zooms for themselves; token moves go out through onMove(id, x, y) which returns a promise.
-export function MapView({ map, image, tokens, onMove, selected, onSelect, grid: showGrid, tool, onClick, onHover, overlay, children }) {
+export function MapView({ map, image, portraitUrl, tokens, onMove, selected, onSelect, grid: showGrid, tool, onClick, onHover, overlay, children }) {
   const box = useRef(null)
   const [view, setView] = useState({ tx: 0, ty: 0, s: 1 })
   const [drag, setDrag] = useState(null)
@@ -125,7 +125,7 @@ export function MapView({ map, image, tokens, onMove, selected, onSelect, grid:
             <div key={t.id} className={`maptoken ${t.kind} ${t.hidden ? 'hid' : ''} ${selected === t.id ? 'sel' : ''} ${t.can_move ? 'mov' : ''}`}
               style={{ left: x - d(t) / 2, top: y - d(t) / 2, width: d(t), height: d(t), '--tc': t.color, fontSize: Math.max(8, d(t) * 0.45) }}
               onPointerDown={(e) => startToken(e, t)} title={t.name + (t.hidden ? ' (hidden from players)' : '')}>
-              <span>{(t.name || '?').trim().slice(0, 2)}</span>
+              {portraitUrl?.(t) ? <img className="tokpic" src={portraitUrl(t)} alt="" draggable={false} /> : <span>{(t.name || '?').trim().slice(0, 2)}</span>}
               <em style={{ fontSize: Math.max(9, map.grid * 0.28) }}>{t.name}</em>
             </div>
           )