goodeye-cli Version Bump

Two phases: (1) bump commit, always; (2) tag + push, only on explicit instruction.

Step 1: Determine new version

User override always wins. Accept any of:

• Bump type: major, minor, patch
• Explicit target: bump to 1.0.0
• Pre-release (PEP 440): 0.9.0a1, 0.9.0rc1

Without override, inspect commits since the last tag:

git describe --tags --abbrev=0       # last tag, e.g. v0.8.0
git log <last-tag>..HEAD --oneline   # commits to classify