Add LESTI 2025/2026 curriculum content

[marcelo-m7]

Summary

• add the full Portuguese course overview for the 2025/2026 LESTI plan, including metadata and highlights
• document every mandatory unit with front matter, learning outcomes, syllabus text and linked topic markdown files based on the official FUC descriptions
• capture optional/alternative units for each track with placeholder descriptions so the plan reflects all choices in the curriculum

Testing

• npm run lint:content

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https://chatgpt.com/codex/tasks/task_e_68cf0180cb1c8322813c766c52b85704

[chatgpt-codex-connector]

Codex Review: Here are some suggestions.

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[chatgpt-codex-connector]

[P1] Ensure topic slugs are unique across modules

The topic page declares slug: "seguranca-web", but the same slug is also defined in uc/19411049/seguranca-web.md. Because the Supabase schema models subjects.topic with slug as the primary key, inserting both files will clash—either the sync will fail on a duplicate key or one UC’s topic will silently overwrite the other. Consider deduplicating the content or assigning distinct slugs so each topic can be stored and referenced independently.

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