Create build/ directory

[Thinkersbluff]

Create the build output directory and configure .gitignore.

Tasks:

• Create build/ directory
• Add .gitkeep file
• Update .gitignore to handle build artifacts

Acceptance Criteria:

• Build directory exists
• .gitignore properly configured
• Directory preserved in git

Estimate: 1 story point

[Thinkersbluff]

Apologies - this issue was created accidentally during testing of repository automation scripts. This issue has been removed as it was not intended for this repository.