chore(server): add vitest as dev dependency with test scripts

Test files existed but vitest wasn't installed. Adds vitest v4,
"test" and "test:watch" scripts. All 22 existing tests pass.

packages/server/package.json

@@ -7,15 +7,17 @@
     "dev": "tsx watch src/index.ts",
     "start": "node --import tsx/esm src/index.ts",
     "build": "tsc",
-    "typecheck": "tsc --noEmit"
+    "typecheck": "tsc --noEmit",
+    "test": "vitest run",
+    "test:watch": "vitest"
   },
   "dependencies": {
+    "@backspace/shared": "workspace:*",
     "@fastify/cors": "^9.0.1",
     "@fastify/multipart": "^8.3.0",
     "@fastify/rate-limit": "^9.1.0",
     "@fastify/static": "^7.0.4",
     "@fastify/websocket": "^10.0.1",
-    "@backspace/shared": "workspace:*",
     "bcryptjs": "^2.4.3",
     "better-sqlite3": "^11.3.0",
     "cheerio": "^1.0.0",
@@ -34,6 +36,7 @@
     "@types/ws": "^8.18.1",
     "drizzle-kit": "^0.24.0",
     "tsx": "^4.16.0",
-    "typescript": "^5.4.0"
+    "typescript": "^5.4.0",
+    "vitest": "^4.0.18"
   }
 }

pnpm-lock.yaml

@@ -107,6 +107,9 @@ importers:
       typescript:
         specifier: ^5.4.0
         version: 5.9.3
+      vitest:
+        specifier: ^4.0.18
+        version: 4.0.18(@types/node@20.19.33)(jiti@1.21.7)(jsdom@28.1.0)(terser@5.46.0)(tsx@4.21.0)
 
   packages/shared:
     devDependencies:
@@ -7167,6 +7170,14 @@ snapshots:
       chai: 6.2.2
       tinyrainbow: 3.0.3
 
+  '@vitest/mocker@4.0.18(vite@6.4.1(@types/node@20.19.33)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0))':
+    dependencies:
+      '@vitest/spy': 4.0.18
+      estree-walker: 3.0.3
+      magic-string: 0.30.21
+    optionalDependencies:
+      vite: 6.4.1(@types/node@20.19.33)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0)
+
   '@vitest/mocker@4.0.18(vite@6.4.1(@types/node@24.12.0)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0))':
     dependencies:
       '@vitest/spy': 4.0.18
@@ -10917,6 +10928,21 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
+  vite@6.4.1(@types/node@20.19.33)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0):
+    dependencies:
+      esbuild: 0.25.12
+      fdir: 6.5.0(picomatch@4.0.3)
+      picomatch: 4.0.3
+      postcss: 8.5.6
+      rollup: 4.57.1
+      tinyglobby: 0.2.15
+    optionalDependencies:
+      '@types/node': 20.19.33
+      fsevents: 2.3.3
+      jiti: 1.21.7
+      terser: 5.46.0
+      tsx: 4.21.0
+
   vite@6.4.1(@types/node@24.12.0)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0):
     dependencies:
       esbuild: 0.25.12
@@ -10932,6 +10958,44 @@ snapshots:
       terser: 5.46.0
       tsx: 4.21.0
 
+  vitest@4.0.18(@types/node@20.19.33)(jiti@1.21.7)(jsdom@28.1.0)(terser@5.46.0)(tsx@4.21.0):
+    dependencies:
+      '@vitest/expect': 4.0.18
+      '@vitest/mocker': 4.0.18(vite@6.4.1(@types/node@20.19.33)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0))
+      '@vitest/pretty-format': 4.0.18
+      '@vitest/runner': 4.0.18
+      '@vitest/snapshot': 4.0.18
+      '@vitest/spy': 4.0.18
+      '@vitest/utils': 4.0.18
+      es-module-lexer: 1.7.0
+      expect-type: 1.3.0
+      magic-string: 0.30.21
+      obug: 2.1.1
+      pathe: 2.0.3
+      picomatch: 4.0.3
+      std-env: 3.10.0
+      tinybench: 2.9.0
+      tinyexec: 1.0.2
+      tinyglobby: 0.2.15
+      tinyrainbow: 3.0.3
+      vite: 6.4.1(@types/node@20.19.33)(jiti@1.21.7)(terser@5.46.0)(tsx@4.21.0)
+      why-is-node-running: 2.3.0
+    optionalDependencies:
+      '@types/node': 20.19.33
+      jsdom: 28.1.0
+    transitivePeerDependencies:
+      - jiti
+      - less
+      - lightningcss
+      - msw
+      - sass
+      - sass-embedded
+      - stylus
+      - sugarss
+      - terser
+      - tsx
+      - yaml
+
   vitest@4.0.18(@types/node@24.12.0)(jiti@1.21.7)(jsdom@28.1.0)(terser@5.46.0)(tsx@4.21.0):
     dependencies:
       '@vitest/expect': 4.0.18