[Feature] Certificate of appreciation for speakers, event committee, and attendance

[ha-yi]

Why needed:
A Certificate of Appreciation provides formal recognition of contribution, validates the role in the event, and serves as an official record that strengthens the credibility and professional profile of the speakers or committee members. It also helps demonstrate expertise, responsibility, and community involvement, which can support future opportunities and collaborations.

Benefit for speakers and event committee:

• Enhances personal credibility as a trusted knowledge-sharer
• Strengthens portfolio, CV, and LinkedIn profile
• Helps attract future speaking invitations
• Shows commitment to education and community development
• Acts as evidence of real contribution in grant, scholarship, or project proposals

For the community:

• Shows the community values and recognizes their contributors
• Encourages more volunteers, mentors, and speakers to join
• Builds a positive culture of appreciation and professionalism
• Helps document event impact and activity history
• Strengthens the community’s reputation when applying for support, sponsorships, or partnerships

Requirements to get Certificates:

• Must be listed as a speaker or event committee member.
• Using Google's unique ID.

Nice to have:

• Can be embedded on GitHub README, something like this: https://github.com/anuraghazra/github-readme-stats, which can be added to the README and linked to the specific user's contribution on the lombokdev page.

[ha-yi]

https://www.figma.com/board/uRGNy17YG2PxrftXE5LmxO/Lombok-Dev?node-id=0-1&t=7GtiXN3ywuxxKxyp-1