chore: ignore node_modules as a symlink too (#79)

`node_modules/` only matches a directory, so a `node_modules` symlink
(e.g. one pointing at another checkout from a git worktree) slipped into a
commit and broke CI's `bun install`. Drop the slash so both are ignored.


Claude-Session: https://claude.ai/code/session_01JCaS35vZG4DCtmM24MYaVR

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Author: sunnylqm

.gitignore

@@ -38,7 +38,7 @@ bower_components
 build/Release
 
 # Dependency directories
-node_modules/
+node_modules
 jspm_packages/
 
 # TypeScript v1 declaration files