Add git conventions and setup .claude directory for personal preferences

[joepvd]

• Add Git Conventions section with branch and remote guidelines
• Setup .claude/ directory for user-specific preferences

[openshift-ci]

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[openshift-ci]

@joepvd: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/security	6abc304	link	false	/test security

Full PR test history. Your PR dashboard.

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[vfreex]

/lgtm

[lgarciaaco]

/lgtm