Add Tags field to user management

[Copilot]

Adds a free-text Tags field to users, stored as a user claim (consistent with First_name, Last_name, Emp_no).

Backend (MiniAuthIdentityEndpoints.cs)

• getUsers: includes Tags claim value in response
• saveUser: persists Tags in the "Tags" user claim

Frontend (UsersView.vue + built assets)

• New Tags column in the users table with inline editable input
• Tags field added to the edit modal

i18n (i18n.ts + index-wa5Wqz5d.js)

Tags translated in all 8 supported locales: en, zh_cn, zh_hant, es, ko, ja, ru, fr.

Warning

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I tried to connect to the following addresses, but was blocked by firewall rules:

• registry.npmmirror.com
  • Triggering command: /home/REDACTED/work/_temp/ghcca-node/node/bin/node node /home/REDACTED/work/_temp/ghcca-node/node/bin/npm install (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

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Original prompt

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This section details on the original issue you should resolve

<issue_title>User tags</issue_title>
<issue_description></issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes User tags #213

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