Implement auto-deletion and protection for branches#265

NikolayS wants to merge 3 commits intomasterpostgres-ai/database-lab-engine:masterfrom

claude/auto-delete-branch-protection-01KiaxrtL1Bh3LzPYAJSQ4Bipostgres-ai/database-lab-engine:claude/auto-delete-branch-protection-01KiaxrtL1Bh3LzPYAJSQ4BiCopy head branch name to clipboard