Add practice range: shooting, AK47, intro cinematic, dressed warehouse scene

- PortalTestDestination practice range: Valorant-style hitscan rifle (recoil,
  spray/bloom, reload, controller support), debug HUD, practice-dummy targets
  with head/body hitboxes, hit/death/respawn animations, procedural SFX/FX
- AK47 model (Quaternius, CC0) held via Animator IK, with fire/reload/equip anims
- Intro cinematic (camera shots, title card, target beam-in, GO hand-off)
- Scene dressing editor pass: CC0 textures, props, warehouse roof, lighting and
  post-processing; custom stylized skybox shader
- CharacterMovement: camera recoil, shoulder offset, cinematic control lock
- Unity CLI pipeline package; plus in-progress chat/Rive/player changes

Asset credits: Assets/Models/Props/PROPS_CREDITS.txt (3 CC-BY 3.0 props),
Assets/Textures/Range/TEXTURES_LICENSE.txt, Assets/Resources/*/..._LICENSE.txt

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

Assets/Y Bot@Idle.prefab

@@ -83,6 +83,10 @@ PrefabInstance:
       propertyPath: m_Name
       value: Y Bot@Idle
       objectReference: {fileID: 0}
+    - target: {fileID: 919132149155446097, guid: e0ac844e563d55c4a8ff510e5409eeae, type: 3}
+      propertyPath: m_TagString
+      value: Player
+      objectReference: {fileID: 0}
     - target: {fileID: 5866666021909216657, guid: e0ac844e563d55c4a8ff510e5409eeae, type: 3}
       propertyPath: m_Controller
       value: 
@@ -140,6 +144,9 @@ MonoBehaviour:
   syncMode: 0
   syncInterval: 0
   cameraMount: {fileID: 4270643899711320435}
+  followSpeed: 5
+  idleFollowSpeed: 0.5
+  cameraLookOffset: {x: 0, y: 1.5, z: 0}
 --- !u!65 &2994849115125833078
 BoxCollider:
   m_ObjectHideFlags: 0