WorldOverlayRenderer: fix RenderType path and Camera.position() type

CI on 3b5e555 revealed:
- net.minecraft.client.renderer.RenderType moved to
  net.minecraft.client.renderer.rendertype; use RenderTypes.lines() factory.
- Camera.position() returns Vec3, not Vector3fc as I guessed.

OrderedSubmitNodeCollector, submitShapeOutline, Shapes.block/box,
LevelRenderEvents.AFTER_TRANSLUCENT_FEATURES — all compiled cleanly.

.claude/scheduled_tasks.lock

@@ -0,0 +1 @@
+{"sessionId":"59f835d0-c4fe-4a97-8637-b7e0ce9d72ee","pid":1608,"acquiredAt":1782108092590}