chore(web): remove and gitignore tsbuildinfo files

Quentin Gliech and Claude Opus 4.6 (1M context) created

These are TypeScript incremental build caches and shouldn't be tracked.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Change summary

webui2/.gitignore                | 3 +++
webui2/tsconfig.app.tsbuildinfo  | 0 
webui2/tsconfig.node.tsbuildinfo | 1 -
3 files changed, 3 insertions(+), 1 deletion(-)

Detailed changes

webui2/.gitignore 🔗

@@ -21,5 +21,8 @@ yarn-error.log*
 # tanstack router plugin cache
 /.tanstack
 
+# typescript build info
+*.tsbuildinfo
+
 # storybook build output
 /storybook-static