chore(controller): three-player-controller als Ordner statt Submodul

Das Submodul zeigte auf GitHub, der eingetragene Stand 028c652 lag aber nur
lokal vor: GitHub-Master ac39682 plus Showcase mit Figuren und launch.json.
Frische Klone konnten den Controller deshalb nicht laden. Jetzt liegt dieser
Stand als normaler Ordner im Repo, ohne Verweis auf GitHub.

dist/ und node_modules/ im Controller bleiben ignoriert und werden wie bisher
lokal gebaut.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

three-player-controller/package.json

@@ -0,0 +1,52 @@
+{
+    "name": "three-player-controller",
+    "version": "0.6.2",
+    "description": "Third-person / first-person player controller for three.js (three-mesh-bvh based)",
+    "author": "hh-hang",
+    "license": "MIT",
+    "main": "./dist/index.js",
+    "module": "./dist/index.mjs",
+    "types": "./dist/index.d.ts",
+    "files": [
+        "dist"
+    ],
+    "exports": {
+        ".": {
+            "types": "./dist/index.d.ts",
+            "import": "./dist/index.mjs",
+            "require": "./dist/index.js"
+        },
+        "./foot-ik": {
+            "types": "./dist/foot-ik.d.ts",
+            "import": "./dist/foot-ik.mjs",
+            "require": "./dist/foot-ik.js"
+        }
+    },
+    "scripts": {
+        "dev": "vite",
+        "build": "tsup",
+        "clean": "rimraf dist",
+        "prepare": "npm run build",
+        "build:example": "vite build"
+    },
+    "peerDependencies": {
+        "three": ">=0.159.0",
+        "three-mesh-bvh": ">=0.7.8"
+    },
+    "devDependencies": {
+        "@sparkjsdev/spark": "^2.1.0",
+        "@types/node": "^25.0.6",
+        "@types/three": "^0.184.0",
+        "3d-tiles-renderer": "^0.4.24",
+        "rimraf": "^6.0.0",
+        "tellux": "^0.2.0",
+        "tsup": "^8.0.1",
+        "typescript": "^5.9.3",
+        "vite": "^7.3.0"
+    },
+    "repository": {
+        "type": "git",
+        "url": "https://github.com/hh-hang/three-player-controller"
+    },
+    "homepage": "https://github.com/hh-hang/three-player-controller"
+}