fix(CPL-316): clarify ChainSecured conversion modal copy

[GTC6244]

Summary

CPL-316 — the "Convert to ChainSecured" confirmation modal still read like a delete dialog and didn't mention that the wallet has to sign to prove ownership.

• Title: Confirm delete → Confirm ownership change
• Button: Delete → Convert
• Body adds: "You will be asked to sign a message with your wallet to prove ownership"

The shared confirmDelete() now takes an optional { title, confirmLabel }. Defaults preserve the existing "Confirm delete" / "Delete" wording, so the actions/keys/groups callers are unchanged.

Files

• lit-static/dapps/dashboard/auth.js — pass new title and button label when invoking the convert flow
• lit-static/dapps/dashboard/ui-utils.js — extend confirmDelete(message, opts) and reset title/button text on every call so state doesn't leak between invocations

Notes

• Diff is 9 lines across 2 files. No backend, schema, or contract changes. No new test framework in this dashboard area, so no automated coverage added.
• The dialog body uses textContent; \n\n collapses in .modal-body. That's pre-existing behavior — happy to switch the body to white-space: pre-line in a follow-up if real paragraph breaks are wanted.

Test plan

• Sign in with an API key, click "Convert to ChainSecured" in the account menu
• Verify modal title reads "Confirm ownership change", action button reads "Convert", and body mentions signing to prove ownership
• Cancel returns to the dashboard with no state change
• Open a delete confirm (e.g., delete a usage key) and verify it still says "Confirm delete" / "Delete"

Linear: https://linear.app/litprotocol/issue/CPL-316/convert-to-chain-secured-modal-update

[Copilot]

Pull request overview

Updates the Lit dashboard’s shared confirmation modal so the “Convert to ChainSecured” flow no longer reads like a delete dialog and explicitly mentions the wallet signature needed to prove ownership.

Changes:

• Extend confirmDelete(message, opts) to optionally override the modal title and confirm button label (with defaults preserving existing delete wording).
• Update the ChainSecured conversion flow to use the new modal title/button copy and add the “sign a message” explanation.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
lit-static/dapps/dashboard/ui-utils.js	Adds optional opts to confirmDelete and resets title/button text on each invocation to avoid cross-invocation UI state leakage.
lit-static/dapps/dashboard/auth.js	Uses the updated confirmDelete options for the “Convert to ChainSecured” confirmation copy (title, button label, and body text).

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