r3d/runtime: allocs, keeps and births at 0 on this side

render3d: shadow_fit, water_reflection_pass, layer_partition_lods and the
GPU cull's scratch are made with the state; v3_dist is scalar; the pushes
into lists sized at start-up, the caps probe, the table growth, the loads
and the constructors declared with their bounds (one statement a line);
the renderer's name made once with the device; the two error messages
given back; the dead lupine models removed.

runtime: a component's text is held interned in its value cell (one copy
per distinct text), so the getter's own text goes with its frame instead
of being kept by ludic.ui's model - 80 of the 83 keeps.

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

packages/ludic.render3d/quat.ludic

@@ -4,6 +4,7 @@
 # major matrices, o may alias its inputs unless stated.
 # ============================================================================
 
+@alloc_ok("a constructor: what it makes is its caller's (records made at start-up or once per figure)")
 function q_new() -> floats { let q = floats(4);  q_identity(q);  return q }
 function q_identity(q: floats) -> void { q[0] = 0.0;  q[1] = 0.0;  q[2] = 0.0;  q[3] = 1.0 }
 function q_set(q: words, x: int, y: int, z: int, w: int) -> void { q[0] = x;  q[1] = y;  q[2] = z;  q[3] = w }