Add Project Collections

[Naomi-Gift]

There is no on-chain way to group projects into curated collections such as “wallets”, “DeFi”, “developer tools”, or “featured ecosystem apps”.

Acceptance criteria:

• Admin can create, update, and delete collections.
• Admin can add/remove projects from collections.
• Collections support paginated project listing.
• Tests cover collection creation, membership changes, and permissions.

[Chongai-Cli]

Hello maintainer, can i be assigned to this issue?

[CollinsC1O]

I would love to work on this issue and resolve it.

[grantfox-oss]

🦊 GrantFox — @CollinsC1O has been assigned to this issue as part of the Official Campaign campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #153)
2. Your PR will be reviewed by the HubDApp maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox as part of the Official Campaign campaign!

@CollinsC1O's PR #165 was approved and merged by @Naomi-Gift.

🏆 @CollinsC1O: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (328 total points). Track your full progress on GrantFox.

👏 Great work, @CollinsC1O! Keep contributing to HubDApp.