render3d: start-up declared, ov_nine and the caster test on buffers made once - 362 frame sites to 122

The renderer starts itself from the first frame (gpu_select), so the device, its tables, the
manifest and programs, grass, shadows, sky, terrain textures and the actor pool read as frame
allocations: each is @alloc_ok as start-up, with gvk_fail (a failure) and the actor census and
texture dump (debug switches). ov_nine's four corner/uv arrays are one floats(16) made in
gvk_startup_state; ac_in_light's four points are made there too. Compiled (steady, and ludic deps
over main 4316ff97).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

packages/ludic.render3d/env.ludic

@@ -692,6 +692,7 @@ export state Render3dState {
   stream_debug_n: int = 0
   stream_scratch: floats = null
   gvk_pipe_bufs: words = null      # a pipeline's vertex buffers, while it is made
+  ov_nine_buf: floats = null       # ov_nine's corners and uvs
   gvk_ac: pointer = null           # the VkAllocationCallbacks every create and destroy is given (R3D_ALLOC_VK=1)
   gvk_prime_b: words = null        # buffers made since the frame began, read once so MoltenVK makes their
   gvk_prime_h: []long = null       # Metal buffers now (gvk_prime), and their handles