[feat] Renamed the project name to Zephirum.

[YUZHEthefool]

Preflight

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• This matches the current-branch, no-legacy, Python 3.14+ policy.
• I filled exactly one of Human note or Agent note, matching who wrote this Issue.

Problem

Once the BTW features have been merged, project visibility has been established, and there are no regression bugs, we need to rename the project to Zephirum.

Proposal

none

Author

Human

Human note

none

Agent note

none

[YUZHEthefool]

@xero-team-bot label +documention

[xero-team-bot]

Labels updated: +documention