gssoc: enhance tracking transparency in project roadmap

[Rish-2006]

Area of Contribution

Documentation

Description

Updating structural overview phrasing within the development roadmap file to clarify long-term framework milestones for new contributors.

[github-actions]

✅ Auto-assigned to @Rish-2006 (issue opener).

Open your PR by 2026-07-07 (7 days). The bot frees this issue for another contributor after that date.

Reminders:

• ⭐ Star the repo first. The star-check job blocks your merge otherwise.
• PR title: type: short description
• Link this issue in your PR body: Closes #1894

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