[code-infra] git-ignore next-env.d.ts (#20177)

Author: Janpot

.gitignore

@@ -7,7 +7,6 @@
 __diff_output__
 .DS_STORE
 *.log
-*.tsbuildinfo
 /.eslintcache
 /.nyc_output
 /coverage
@@ -28,3 +27,7 @@ performance-snapshot.json
 .github/styles/
 test-results
 CLAUDE.md
+
+# typescript
+*.tsbuildinfo
+next-env.d.ts

docs/next-env.d.ts

@@ -10,7 +10,7 @@
     "esModuleInterop": true,
     "incremental": true,
     "jsx": "preserve",
-    "types": ["@mui/internal-test-utils/initMatchers", "vitest/globals"]
+    "types": ["@mui/internal-test-utils/initMatchers", "vitest/globals", "next"]
   },
   "include": [
     "next-env.d.ts",