AxeOS UI: add i18n with DE/ES translations and language selector

[marsmensch]

Summary

• Add a lightweight i18n service + translate pipe with JSON locale bundles (EN/DE/ES) and English fallback.
• Replace AxeOS UI strings with stable i18n keys across Dashboard, Settings, Network, Pool, Update, Logs, and Swarm.
• Add Settings → UI language selector (persisted; applied on Save).
• Localize share rejection labels and tooltip explanations.
• Add contributor docs and an i18n:check script for locale validation.

Testing

• npm run i18n:check
• npm test (Node 22 LTS)

Notes

• Language changes apply only after clicking Save (consistent with existing Settings behavior).
• Scope limited to AxeOS web UI; no mining/firmware logic changes.

[0xf0xx0]

code ack, testing

[0xf0xx0]

tested and works for me, good change :3

[WantClue]

@marsmensch please resolve conflicts

[WantClue]

Wantclue where have you been getting your data from?
…
On Sun, Feb 22, 2026, 5:57 PM WantClue @.> wrote: WantClue left a comment (bitaxeorg/ESP-Miner#1532) <#1532 (comment)> @marsmensch https://github.com/marsmensch please resolve conflicts — Reply to this email directly, view it on GitHub <#1532 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/BVQGA6O2HU6BSAFCLJ7W65L4NIX5PAVCNFSM6AAAAACTKVQIGSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTSNBRHA3DMOJQGU . You are receiving this because you are subscribed to this thread.Message ID: @.>

What are you talking about? If this is not in direct connection with this PR don't comment here

[mutatrum]

Hi @marsmensch, I'm working on an Early Access release build, and would like to include this PR as well. Can you update this PR to latest master? Thank you!