feat: add roadmap management with add, move, complete and remove commands

[d-claro]

What was done

• Added roadmap management commands to manage the team roadmap directly from the terminal
• Added Roadmap submenu to the interactive menu with all management options
• Restructured roadmap.md to include a Completed section

New Commands

• roadmap-add <section> <item> — adds an item to a roadmap section (inprogress, todo, backlog)
• roadmap-move <item> <section> — moves an item to another section
• roadmap-complete <item> — marks an item as completed
• roadmap-remove <item> — removes an item from the roadmap with confirmation

Menu Changes

• Roadmap option now opens a submenu with full management options
• Section selection uses visual labels (🟢 In Progress, 🟡 To Do, 🔴 Backlog)

Notes

• Item text must match exactly when moving, completing or removing
• Open for suggestions and feedback from the team.