chore: ignore auto-generated bundle symlinks in .gitignore

setup_bundle_symlinks.py creates POSIX symlinks inside versions/*-bundle/
at build time on Linux. These must not be committed to git (they break
Windows clones) but were appearing as untracked (??) entries in git status.

Add precise gitignore patterns that cover all generated symlink paths
(C, Asm, CPP/*.mak, CPP/7zip/*.mak|.h|.rc, CPP/7zip/Archive|Common|...,
CPP/7zip/UI/Agent|Console|...) without hiding the tracked project-owned
sources in Bundles/Nsis7z/ and UI/NSIS/.

.gitignore

@@ -65,3 +65,31 @@ tools/check_*.py
 versions/*/CPP/7zip/*/Release/
 versions/*/CPP/7zip/*/x64/
 _linux_build/
+
+# Symlinks auto-generated by tools/linux/setup_bundle_symlinks.py at build
+# time (Linux-only, not committed to git; recreated on-the-fly as needed).
+versions/*-bundle/C
+versions/*-bundle/Asm
+versions/*-bundle/CPP/Build.mak
+versions/*-bundle/CPP/Common
+versions/*-bundle/CPP/Windows
+versions/*-bundle/CPP/build*.cmd
+versions/*-bundle/CPP/build*.sh
+versions/*-bundle/CPP/7zip/*.mak
+versions/*-bundle/CPP/7zip/*.rc
+versions/*-bundle/CPP/7zip/*.h
+versions/*-bundle/CPP/7zip/*.txt
+versions/*-bundle/CPP/7zip/makefile
+versions/*-bundle/CPP/7zip/Archive
+versions/*-bundle/CPP/7zip/Common
+versions/*-bundle/CPP/7zip/Compress
+versions/*-bundle/CPP/7zip/Crypto
+versions/*-bundle/CPP/7zip/UI/Agent
+versions/*-bundle/CPP/7zip/UI/Client7z
+versions/*-bundle/CPP/7zip/UI/Common
+versions/*-bundle/CPP/7zip/UI/Console
+versions/*-bundle/CPP/7zip/UI/Explorer
+versions/*-bundle/CPP/7zip/UI/Far
+versions/*-bundle/CPP/7zip/UI/FileManager
+versions/*-bundle/CPP/7zip/UI/GUI
+versions/*-bundle/CPP/7zip/UI/makefile