Add build outputs to .gitignore

- Exclude build-output/ directory from version control
- Ignore binary files (.bin, .elf, .map)
- Keep source code and build artifacts separate

Author: 031devstudios

.gitignore

@@ -4,3 +4,9 @@
 .vscode/launch.json
 .vscode/ipch
 .vscode/settings.json
+
+# Build outputs
+build-output/
+*.bin
+*.elf
+*.map