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>

Packages/packages-lock.json

@@ -131,7 +131,7 @@
       "url": "https://packages.unity.com"
     },
     "com.unity.pipeline": {
-      "version": "0.4.0-exp.1",
+      "version": "0.7.0-exp.1",
       "depth": 0,
       "source": "registry",
       "dependencies": {
@@ -207,6 +207,24 @@
         "com.unity.render-pipelines.core": "17.5.0"
       }
     },
+    "com.unity.sdk.linux-arm64": {
+      "version": "1.1.0",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.sysroot.base": "1.1.0"
+      },
+      "url": "https://packages.unity.com"
+    },
+    "com.unity.sdk.linux-x86_64": {
+      "version": "1.1.0",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.sysroot.base": "1.1.0"
+      },
+      "url": "https://packages.unity.com"
+    },
     "com.unity.searcher": {
       "version": "4.9.4",
       "depth": 1,
@@ -223,6 +241,13 @@
         "com.unity.searcher": "4.9.3"
       }
     },
+    "com.unity.sysroot.base": {
+      "version": "1.1.0",
+      "depth": 1,
+      "source": "registry",
+      "dependencies": {},
+      "url": "https://packages.unity.com"
+    },
     "com.unity.terrain-tools": {
       "version": "5.3.2",
       "depth": 0,
@@ -265,6 +290,15 @@
       },
       "url": "https://packages.unity.com"
     },
+    "com.unity.toolchain.win-x86_64-linux": {
+      "version": "1.1.0",
+      "depth": 0,
+      "source": "registry",
+      "dependencies": {
+        "com.unity.sysroot.base": "1.1.0"
+      },
+      "url": "https://packages.unity.com"
+    },
     "com.unity.ugui": {
       "version": "2.5.0",
       "depth": 0,