[codex] add Supabase to project suggestions

[Sean-Kenneth-Doherty]

Summary

• add Supabase to the project suggestions list
• link the card to the Supabase GitHub contributor page
• include GitHub avatar, concise description, and searchable language/topic tags

Validation

• GitHub API reports supabase/supabase is public, unarchived, and on master
• https://github.com/supabase/supabase/contribute returns HTTP 200
• https://avatars.githubusercontent.com/u/54469796?v=4 returns HTTP 200
• supabase/supabase has an open good first issue-labeled issue
• Supabase source count is 1 via src/data/projects.js import
• git diff --check
• GITHUB_TOKEN=$(gh auth token) pnpm build
• generated dist/index.html contained the Supabase card and contributor link before restoring generated files

Addresses #1

[Sean-Kenneth-Doherty]

Validated locally on head bebd43cf9f4d2a776197a9b53c9634da4fcc6ab3 in an isolated worktree:

• gh api repos/supabase/supabase --jq ... confirmed the repo is public, unarchived, default branch master, with open issues
• gh issue list --repo supabase/supabase --label "good first issue" --state open --limit 3 --json number,title --jq "length" returned 1
• imported src/data/projects.js and confirmed Supabase source count is 1 with the expected contributor link and avatar
• curl -L returned HTTP 200 for https://github.com/supabase/supabase/contribute
• curl -L returned HTTP 200 for https://avatars.githubusercontent.com/u/54469796?v=4
• git diff --check origin/main...HEAD && git diff --check
• GITHUB_TOKEN=$(gh auth token) pnpm build
• checked generated dist/index.html before restoring generated files; the Supabase contributor link appears once

All passed. gh pr checks reports no hosted checks on this branch.

[Sean-Kenneth-Doherty]

Closing this to reduce maintainer review noise from my project-suggestion-only PR batch. I am pruning these so the queue can focus on concrete bug, security, accessibility, and performance fixes.