Remove tsconfig.tsbuildinfo from tracking, add to .gitignore

Co-authored-by: Junie <junie@jetbrains.com>

.gitignore

@@ -5,6 +5,9 @@ node_modules
 dist
 dist-ssr
 
+# TypeScript incremental build cache (local-only, regenerated on every build)
+tsconfig.tsbuildinfo
+
 # Logs
 *.local
 npm-debug.log*

tsconfig.tsbuildinfo

@@ -1 +0,0 @@
-{"root":["./src/fonts.ts","./src/main.tsx","./src/queryclient.ts","./src/router.tsx","./src/vite-env.d.ts","./src/components/aboutsection.tsx","./src/components/contactsection.tsx","./src/components/errorboundary.tsx","./src/components/footer.tsx","./src/components/hero.tsx","./src/components/nav.tsx","./src/components/packagecard.tsx","./src/components/packagessection.tsx","./src/components/processsection.tsx","./src/components/processstep.tsx","./src/components/rootlayout.tsx","./src/components/themetoggle.tsx","./src/components/__tests__/errorboundary.test.tsx","./src/components/__tests__/nav.test.tsx","./src/components/__tests__/packagessection.test.tsx","./src/data/content.ts","./src/hooks/usepackagesquery.ts","./src/routes/__root.tsx","./src/routes/index.tsx","./src/test/setup.ts","./src/theme/themeprovider.tsx","./src/theme/tokens.ts","./src/theme/__tests__/themeprovider.test.tsx","./src/utils/scrolltohash.ts"],"version":"5.9.3"}