feat(jobs): in-browser STL / PLY / OBJ scan viewer

Clinics upload intraoral scans as raw STL/PLY/OBJ and labs need to see
what was captured before accepting the case. Built a tooth-level 3D
preview that runs entirely in the browser — no server-side rendering,
no extra service, just three.js + react-three-fiber driven off the
existing download proxy.

Component (src/components/stl-viewer.tsx)
  - Detects format from the filename (.stl / .ply / .obj).
  - fetch() → ArrayBuffer → STLLoader / PLYLoader / OBJLoader.parse.
  - OBJ comes back as a Group; merge the child meshes into a single
    BufferGeometry (positions concat) so all three formats render
    through the same mesh path.
  - Scene: dark background, ambient + two directional lights, a
    light-grey standard material, drei <Bounds> for auto-fit framing,
    OrbitControls with damping. A 'Sığdır' button in the corner re-fits
    the camera by remounting Bounds.
  - Cleanup: geometry.dispose() on unmount, fetch cancellation guard,
    inline error/loading states.

Wiring (job-files-panel.tsx)
  - VIEWABLE_RE = /\.(stl|ply|obj)$/i. Only those rows get the new
    eye-icon button.
  - STLViewer is loaded via next/dynamic with ssr:false so three.js
    (~500KB minified) only enters the bundle when the dialog actually
    opens. Mounting is also gated on viewerOpen, so closing the dialog
    frees the WebGL context.
  - Dialog is a tall (85vh) wide (max-w-5xl) shell with the filename
    + size in the header and the canvas filling the rest.

Deps added: three, @react-three/fiber, @react-three/drei (+ types).

package.json

@@ -37,6 +37,8 @@
     "@radix-ui/react-toggle": "^1.1.10",
     "@radix-ui/react-toggle-group": "^1.1.11",
     "@radix-ui/react-tooltip": "^1.2.8",
+    "@react-three/drei": "^10.7.7",
+    "@react-three/fiber": "^9.6.1",
     "@tailwindcss/postcss": "^4.1.18",
     "@tanstack/react-table": "^8.21.3",
     "appwrite": "^24.2.0",
@@ -57,12 +59,16 @@
     "recharts": "3.6.0",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.4.0",
+    "three": "^0.184.0",
     "vaul": "^1.1.2",
     "zod": "^4.3.2",
     "zustand": "^5.0.9"
   },
   "pnpm": {
-    "onlyBuiltDependencies": ["sharp", "unrs-resolver"],
+    "onlyBuiltDependencies": [
+      "sharp",
+      "unrs-resolver"
+    ],
     "patchedDependencies": {
       "node-fetch-native-with-agent@1.7.2": "patches/node-fetch-native-with-agent@1.7.2.patch"
     }
@@ -72,6 +78,7 @@
     "@types/node": "^25.0.3",
     "@types/react": "^19.2.7",
     "@types/react-dom": "^19.2.3",
+    "@types/three": "^0.184.1",
     "eslint": "^9.39.2",
     "eslint-config-next": "16.1.1",
     "tailwindcss": "^4.1.18",