fix(frontend): decouple frontend from backend internal URL

[bosbaber]

At the heart of it, this this PR attempts to refactor the frontend package so that the BACKEND_INTERNAL_URL env variable is not inlined at build time anymore, but rather something that can be set at deploy time configuration.

We ran into this issue because we changed the name of the default backend service when trying to do a A/B deployment strategy. At this point we realised that the expected backend service name is baked into the image and cannot be configured compile time.

This PR attempts to rework the edge middleware so that it retrieves the URL to the internal backend service from the SSR side. This way built frontend images are no longer bound to very specific internal host names and topologies.

[Copilot]

Pull request overview

This PR refactors the wallet frontend’s auth gating and internal-backend resolution so the frontend build is no longer coupled to a build-time-inlined BACKEND_INTERNAL_URL. It removes edge middleware-based auth checks and replaces them with SSR (getServerSideProps) wrappers that resolve the backend base URL at runtime via the shared HTTP client.

Changes:

• Removed Next.js edge middleware.ts and moved auth/KYC/guest redirects into SSR wrappers (withAuth, withKyc, withGuest).
• Updated many pages to use the SSR wrappers and to consume ctx.user instead of calling userService.me() in each page.
• Stopped exposing BACKEND_INTERNAL_URL via next.config.js env inlining; SSR requests use runtime process.env.BACKEND_INTERNAL_URL through src/lib/httpClient.ts.

Reviewed changes

Copilot reviewed 27 out of 27 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/wallet/frontend/src/pages/withdraw.tsx	Switches SSR auth + user hydration to withAuth and ctx.user.
packages/wallet/frontend/src/pages/transactions.tsx	Removes per-page me() call; uses withAuth and ctx.user.
packages/wallet/frontend/src/pages/settings/index.tsx	Migrates to withAuth and uses ctx.user for settings props.
packages/wallet/frontend/src/pages/settings/developer-keys.tsx	Migrates to withAuth and uses ctx.user for layout gating.
packages/wallet/frontend/src/pages/send.tsx	Migrates to withAuth and removes duplicate me() call.
packages/wallet/frontend/src/pages/request.tsx	Migrates to withAuth and removes duplicate me() call.
packages/wallet/frontend/src/pages/no-access.tsx	Adds SSR auth gating via withAuth().
packages/wallet/frontend/src/pages/kyc.tsx	Uses withKyc wrapper to enforce KYC-only access rules.
packages/wallet/frontend/src/pages/index.tsx	Uses withAuth and consumes ctx.user for homepage props.
packages/wallet/frontend/src/pages/grants/index.tsx	Uses withAuth and removes me() call.
packages/wallet/frontend/src/pages/grants/[grantId].tsx	Uses withAuth and removes me() call for grant detail.
packages/wallet/frontend/src/pages/grant-interactions/index.tsx	Uses withAuth wrapper for grant interaction SSR flow.
packages/wallet/frontend/src/pages/deposit.tsx	Uses withAuth and ctx.user while still fetching GateHub iframe URL.
packages/wallet/frontend/src/pages/card.tsx	Uses withAuth wrapper for card page SSR.
packages/wallet/frontend/src/pages/auth/verify/[token].tsx	Uses withGuest wrapper for verify-email flow.
packages/wallet/frontend/src/pages/auth/signup.tsx	Adds withGuest() SSR gating for signup.
packages/wallet/frontend/src/pages/auth/reset/[token].tsx	Uses withGuest wrapper for password reset flow.
packages/wallet/frontend/src/pages/auth/login.tsx	Adds withGuest() SSR gating for login.
packages/wallet/frontend/src/pages/auth/index.tsx	Adds withGuest() SSR gating for auth welcome.
packages/wallet/frontend/src/pages/auth/forgot.tsx	Adds withGuest() SSR gating for forgot-password.
packages/wallet/frontend/src/pages/account/create.tsx	Uses withAuth and removes per-page me() call.
packages/wallet/frontend/src/pages/account/[accountId].tsx	Uses withAuth and removes per-page me() call.
packages/wallet/frontend/src/middleware.ts	Removes edge middleware-based auth gating entirely.
packages/wallet/frontend/src/lib/serverAuth.ts	Introduces SSR auth/KYC/guest wrappers centralizing redirect logic.
packages/wallet/frontend/src/lib/httpClient.ts	Ensures SSR base URL is read from runtime BACKEND_INTERNAL_URL.
packages/wallet/frontend/next.config.js	Stops inlining BACKEND_INTERNAL_URL via env configuration.