Edge cards light their targets; own casts never wrench the neck

Raising an edge-target card now makes every wall and door face
breathe faint gold in the pane — the cockpit's answer to the board's
edge handles — with hover still brightening the chosen face. And the
director's own-magic aim gains a quarter-turn cap: a deed you aimed
behind you via the keymap stays behind you, while deeds done TO you
may still spin the world.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/web/src/fpv/FirstPerson.svelte

@@ -24,6 +24,7 @@
     rubble = [],
     ontarget,
     litCells = null,
+    edgeSelect = false,
   }: {
     view: GameView;
     povId: string;
@@ -45,6 +46,9 @@
     /** Squares a selected cell-target card may aim at: the pane dims the
      * ineligible ground exactly as the board dims its squares. */
     litCells?: Set<string> | null;
+    /** An edge-target card is raised: every wall and door face glows
+     * faintly, the pane's answer to the board's edge handles. */
+    edgeSelect?: boolean;
   } = $props();
 
   const FOV = Math.PI / 2.9;
@@ -386,6 +390,12 @@
         ctx.fillStyle = `rgba(120,70,220,${haze})`;
         ctx.fillRect(col, top, 1, wallH);
       }
+      if (edgeSelect && !hit.frame && (hit.kind === "wall" || hit.kind === "door") && hit.edge) {
+        // The raised edge-card's invitation: faces breathe gold.
+        const offer = 0.10 + 0.05 * Math.sin(time / 420 + hit.worldU * 3);
+        ctx.fillStyle = `rgba(201,167,42,${Math.max(0, offer)})`;
+        ctx.fillRect(col, top, 1, wallH);
+      }
     }
 
     // Sprites, far to near, sliced against the depth buffer.