Agreements settings translation

[webguru-hypha]

QA Checklist (Manual)

Scope

Validate the select-settings-action and select-create-action i18n/refactor changes, plus shared governance/components touched by this PR.

Test Matrix

• Locales: en, de, fr, es, pt
• Roles/states: signed-out user, signed-in non-member, signed-in member
• Browsers: Chromium + one secondary browser
• Viewports: desktop + mobile width

Core Navigation Paths

• /{lang}/dho/{spaceId}/[tab]/select-settings-action
• /{lang}/dho/{spaceId}/agreements/create
• /{lang}/dho/{spaceId}/agreements/create/activate-spaces
• /{lang}/dho/{spaceId}/agreements/create/buy-hypha-tokens
• /{lang}/dho/{spaceId}/agreements/create/space-to-space-membership
• /{lang}/dho/{spaceId}/[tab]/space-configuration
• /{lang}/dho/{spaceId}/agreements/proposal/{documentSlug}
• /{lang}/dho/{spaceId}/agreements/proposal/{documentSlug}/voters
• /{lang}/profile/{personSlug}/edit
• /{lang}/my-spaces and /{lang}/network

Functional Checks

• Every visible label/button/help text is localized (no fallback English leaks in non-EN locales)
• Form validation messages render localized copy (including dynamic/interpolated errors)
• Rich-text/i18n CTA sentences read naturally in each locale (no broken word-order from concatenated fragments)
• Proposal labels and metadata display correctly across states (open/accepted/rejected)
• Date/number/currency formatting follows locale conventions
• Search placeholders and attachment/link labels are localized in shared components

Regression Checks (Refactor-sensitive)

• Create agreement flow submits expected payloads and routes correctly
• Activate spaces / buy tokens insufficient-funds messaging + CTA behavior works
• Issue-new-token validation and file-format error parsing still works with localized output
• Notification centre labels/wrappers render correctly; missing keys gracefully fallback where intended
• Treasury/proposal token type labels remain localized consistently across cards/details/forms

Error & Boundary Coverage

• Validate route-level error pages for agreements/members/overview/treasury tabs
• Validate global error and not-found pages are localized
• Confirm proposal/voters side panel back/close actions are translated and function correctly

API/Runtime Safety

• POST /api/webhooks/proposal/created does not crash app when signing key is missing
• POST /api/webhooks/proposal/executed does not crash app when signing key is missing
• POST /api/webhooks/proposal/rejected does not crash app when signing key is missing
• POST /api/webhooks/space/created does not crash app when signing key is missing

Acceptance Criteria

• No untranslated/incorrect strings in supported locales on tested paths
• No runtime errors in console for tested flows
• No navigation regressions in create/settings/proposal flows
• Build-critical flows pass smoke checks on preview

Summary by CodeRabbit

• New Features

  • Added Portuguese and Spanish locales with comprehensive translations.

• Improvements

  • App-wide UI localization: labels, buttons, placeholders, validation and error messages.
  • Locale-aware date/time formatting and translated loader/backdrop messages.
  • More configurable UI text (search placeholders, attachment label, keep-window-open message).

• Bug Fixes

  • Webhook endpoints respond with clear error when signing keys are not configured.
  • Updated Smart Contract integration link.