[2.9] Further learning tab in CI MicroFE (conditional)

[jasminetay-moe]

Epic: E2 — MicroFE for CI
Role: Engineer

User Story

As a teacher, I want to see a Further Learning tab in the CI interface — shown only when relevant further learning content exists — so that I can explore additional resources beyond the immediate AI guidance.

Context

The Further Learning tab is conditionally rendered: it only appears when the model service returns further learning content for the current context. If no further learning content is available, the tab is hidden entirely (not shown as empty or disabled). This avoids surfacing dead-ends to time-poor teachers.

Acceptance Criteria

• Further Learning tab is shown only when the model service returns further learning content
• Tab is completely hidden (not disabled or greyed out) when no content is available
• Tab lists further learning items with title, source, and a link/CTA
• Items open in the inline document viewer or an external link as appropriate
• Loading state handled while content is being fetched

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📄 PRD: E2 — Glow CI PRD