Server-side rendering (SSR) hydration for claim pages

[kilodesodiq-arch]

Problem Statement. Today's Next.js app serves CSR-only? Unclear from next.config.ts.
Server rendering improves first-contentful paint on weak mobile networks (humanitarian
field).

Technical Context.
app/frontend/next.config.ts.

Expected Outcome. Pages backed by /api/v1/claims are SSR-enabled behind a Cache-Control
header. Cache-Control header currently applied to backend list endpoints via #32.

Acceptance Criteria.

• E2E test asserts first contentful paint < 1 s on a 3G throttled profile in Playwright.

Files or modules likely to be affected.
app/frontend/src/app/[locale]/..._tsx,
next.config.ts.

Dependencies. #32.

Difficulty. Medium
Estimated effort. M

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Backlog item #84 from `docs/maintainer-issue-backlog.md.

[Emelie-Dev]

Hi, I would love to work on this issue.

[karanjakevin39-collab]

Hi maintainer can i work on this issue ?

[grantfox-oss]

🦊 GrantFox — @karanjakevin39-collab has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #292)
2. Your PR will be reviewed by the ChainForgee maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign | FWC26 campaign!

@karanjakevin39-collab's PR #346 was approved and merged by @kilodesodiq-arch.

🏆 @karanjakevin39-collab: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (697 total points). Track your full progress on GrantFox.

👏 Great work, @karanjakevin39-collab! Keep contributing to ChainForgee.