feat(repair): mount Ebike on TestMap and snap repair to parked position

The Physique test scene now mounts the real Ebike component for the
ebike repair zone, mirroring GameStageContent so the bike model and
its interactions (mount/dismount, parked position tracking) are
available when testing the repair flow.

RepairGame derives its live world position from
window.ebikeParkedPosition once the ebike mission leaves the
locked/waiting phase, so the repair sequence happens wherever the
player parked the bike rather than at the static zone anchor.

src/world/debug/TestMap.tsx

@@ -3,6 +3,7 @@ import { Component, useRef, useState, useEffect } from "react";
 import * as THREE from "three";
 import { Physics, RigidBody, CuboidCollider } from "@react-three/rapier";
 import { Line } from "@react-three/drei";
+import { Ebike } from "@/components/ebike/Ebike";
 import { RepairGame } from "@/components/three/gameplay/RepairGame";
 import { GrabbableObject } from "@/components/three/interaction/GrabbableObject";
 import { AnimatedModel } from "@/components/three/models/AnimatedModel";
@@ -239,6 +240,9 @@ export function TestMap({ onOctreeReady }: TestMapProps): React.JSX.Element {
             <group position={zone.position}>
               <RepairPlaygroundZoneMarker color={zone.color} />
             </group>
+            {zone.mission === "ebike" ? (
+              <Ebike position={zone.position} />
+            ) : null}
             <RepairGame mission={zone.mission} position={zone.position} />
           </group>
         ))}