Improve player and foliage shadow quality and stability

- ensure player transform sync is not gated by third-person so player shadow stays consistent

- hold shadow projection center during movement and snap once on stop to remove delayed catch-up

- smooth foliage caster transitions using blended phase-shifted UV samples

- tune foliage motion frequencies/amplitudes for less popping

- increase shadow map resolution to 2048 and retune terrain PCF texel scale

- increase global shadow strength from 0.62 to 0.68 for stronger, clearer shadows

src/rendering/renderer.cpp

@@ -1987,7 +1987,7 @@ void Renderer::update(float deltaTime) {
 
     // Sync character model position/rotation and animation with follow target
     auto charAnim1 = std::chrono::high_resolution_clock::now();
-    if (characterInstanceId > 0 && characterRenderer && cameraController && cameraController->isThirdPerson()) {
+    if (characterInstanceId > 0 && characterRenderer && cameraController) {
         if (meleeSwingCooldown > 0.0f) {
             meleeSwingCooldown = std::max(0.0f, meleeSwingCooldown - deltaTime);
         }