Add Stellar 37° program projects to Stellar ecosystem

[pedro-pelicioni]

Hello!

Nearx, in partnership with the Stellar Development Foundation, ran Stellar 37°, a Brazilian startup acceleration program selecting 30 startups focused on cross-border payments, asset tokenization, and Web3 infrastructure built on Stellar.
This PR adds the participating projects to the Stellar ecosystem repository.

The projects span three core verticals: cross-border payments, real-world asset tokenization, and Web3-native financial infrastructure — all built specifically on the Stellar network and targeting the Brazilian and Latin American markets.

I've reviewed the submitted repos for duplicates and broken links before this submission. If you have any questions or need adjustments to the PR, let me know.

Thanks!

[yizhao-ec]

Hey! Thanks for the Stellar 37° submission. Before we can merge, a few of the entries don't point at actual repositories and need fixing:

Profile links (not repos) — these point at a GitHub user/org profile rather than a specific repository. Please replace each with the actual repo URL(s):

• github.com/HighLiquidity
• github.com/dpo2u
• github.com/mutav-finance
• github.com/ParaDevsAI
• github.com/TXLOGPAY

Repos that can't be found — these return 404 (deleted, private, or mistyped):

• github.com/fsegall/taskloop
• github.com/namoojen/pid

Once those are sorted we'll get this merged. Thanks!