Restructure/stellar first

[adelekevictor12]

What does this change?

Closes #

How to verify

# e.g.
npx tsc --noEmit
npm run build
cd stellar/route-corrections && cargo test

Checklist

• npx tsc --noEmit passes
• npm run build passes
• cargo test passes (if I touched the Soroban contract)
• I added/updated tests for behaviour changes
• UI changes work in both light and dark mode (used var(--…) theme tokens, no hard-coded colours)
• UI changes are keyboard-accessible and labelled
• No secrets, keys, or .env.local values are included in this PR

Screenshots / output