fix: i18n disconnected state, tl.json translations, Playwright CI, dedup e2e

[chinelo002]

Summary

• [Frontend] Dashboard home page wallet-not-connected state and RepaymentReminderBanner are hardcoded English, ignoring next-intl #1241 — Replaced 5 hardcoded English strings in page.tsx: disconnected-state heading/subheading, Wallet Not Connected h2, connect CTA button, and all 3 RepaymentReminderBanner strings (Repayment due in {h}h — Loan #, Repay now, Dismiss repayment reminder). Added disconnected.*, reminder.*, and creditScore.* keys to en.json, es.json, and tl.json. Credit Score section aria-label and Tooltip strings also wired through t().
• [Frontend] Tagalog (tl.json) has ~42 values identical to English, so Navigation/Kingdom/Liquidations render untranslated for tl users #1242 — Translated 42 tl.json values that were verbatim copies of English, covering Navigation, Kingdom, Notifications, LoanCard, AdminDisputes, LoanDetails, Liquidations, and ActivityPage.status.liquidated.
• [Testing] criticalFlows.spec.ts duplicates the loan-request and repay flows already covered by dedicated specs, with divergent mock shapes that risk drift #1250 — Removed the duplicate Flow 1 (loan wizard) and Flow 3 (repay) from criticalFlows.spec.ts; those flows are owned by borrower-loan-flow.spec.ts and borrower-repay-flow.spec.ts with a single consistent set of route mocks. Retained Flow 2 (lending pool), Flow 4 (remittance history), and Flow 5 (settings/logout) which have no dedicated spec.
• [CI] Playwright e2e suite is never executed by any workflow - 9 specs in frontend/e2e plus playwright.config.ts run only locally #1251 — Added e2e job to .github/workflows/ci.yml: installs Playwright with Chromium, runs npm run test:e2e under frontend/, and uploads the HTML/trace report as an artifact on failure. Job is gated on supply-chain-audit + frontend passing.

closes #1241
closes #1242
closes #1250
closes #1251