Add a roadmap count summary to the all roadmaps page

[RishiByte]

Overview

Show a small summary on the all roadmaps page that tells visitors how many roadmaps are available.

Why this helps

A simple count makes the page feel more informative and gives users quick context about the size of the project.

Suggested scope

• Review project/src/app/docs/all-roadmaps/page.tsx.
• Use existing roadmap data if available.
• Add a short summary like total roadmaps or grouped roadmap count.

Acceptance criteria

• Page shows the total number of available roadmaps.
• Count comes from existing roadmap data where practical.
• Existing layout and style are preserved.
• The project builds successfully.

Priority

Low

Type

Enhancement

Level

Easy