Stellar-focused hero code editor (replace generic with Stellar samples)

[truthixify]

Tier: M (2-4 days) Type: content

Context

Hero has a code editor tabbed across send.ts / scan.ts / withdraw.ts. The examples are chain-agnostic. For the Stellar Wave program, lead with Stellar samples to make the partnership visible at first paint.

Scope

Update src/components/Hero.tsx:

• Default tab uses @wraith-protocol/sdk/chains/stellar imports
• Examples lean on Stellar-specific functions (StrKey output, st:xlm: meta-address)
• Optional: per-chain selector so visitors can switch the displayed chain
• Preserve existing tab UX (3 tabs, copy button, syntax highlighting)
• Snippets must compile against current SDK API

Acceptance criteria

• Hero shows Stellar code by default
• Snippets verified to compile
• Optional chain selector if it fits the design
• No visual regression vs current Hero

Files to start with

• src/components/Hero.tsx