fix: handle missing TRADFI_API

[zhangolve]

Fix local dev when .env is missing by adding a fallback public TRADFI API endpoint.

Summary by CodeRabbit

Bug Fixes

• Improved API connection reliability by adding a default fallback URL, ensuring the application functions properly even when environment configuration is missing.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The TRADFI_API constant in src/constants/index.ts was updated to include a fallback default URL. When the environment variable is unset, the constant now defaults to 'https://tradfi.llama.fi' instead of being undefined.

Changes

Cohort / File(s)	Summary
Configuration Fallback src/constants/index.ts	Added nullish coalescing operator to provide default URL ('https://tradfi.llama.fi') for TRADFI_API when environment variable is not set

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A tiny constant hops in place,
With fallback values, just in case,
When env vars vanish in the night,
A default URL shines bright!
One small change, a guard so nice,
No more undefined—problem sliced! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: adding handling for a missing TRADFI_API configuration with a fallback default.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing touches

• 📝 Generate docstrings

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1652c5c and 5fc30f1.

📒 Files selected for processing (1)

• src/constants/index.ts

🔇 Additional comments (1)

src/constants/index.ts (1)

170-170: LGTM!

The fallback URL pattern is consistent with other API endpoints in this file (e.g., SERVER_URL, STABLECOINS_SERVER_URL, BRIDGES_SERVER_URL, etc.). This change improves the local development experience while maintaining the ability to override via environment variable when needed.

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