Keep keyless mode with a trailing slash in the cloud API URL

[danielgaskins]

What changed

isCustomApiUrl() now ignores trailing slashes when comparing an API URL with the default Firecrawl cloud URL.

This keeps https://api.firecrawl.dev/ on the same keyless and authentication paths as https://api.firecrawl.dev. Custom API URLs are still treated as custom.

I added regression coverage for URL classification, keyless mode, and API-key validation.

Testing

• corepack pnpm run build
• corepack pnpm exec vitest run --maxWorkers=2 --reporter=dot --silent
• corepack pnpm run type-check
• corepack pnpm run format:check

Fixes #274

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Summary by cubic

Fixes #274: trailing slashes in the cloud API URL no longer break keyless mode.

normalizeApiUrl() strips trailing slashes from the API base URL and is now applied wherever the URL is compared or joined, so https://api.firecrawl.dev/// behaves like https://api.firecrawl.dev for both keyless request paths and API-key validation. Custom API URLs with trailing slashes are still treated as custom. Adds regression tests for URL classification, keyless request joining, and API-key validation.

^{Written for commit 0782f17. Summary will update on new commits.}

[cubic-dev-ai]

All reported issues were addressed across 2 files

<sub>Shadow auto-approve: would not auto-approve because issues were found.

Fix all with cubic | Re-trigger cubic</sub>

[cubic-dev-ai]

0 issues found across 6 files (changes from recent commits).

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Shadow auto-approve: would auto-approve. Normalizes trailing slashes on API base URLs so the cloud URL with a trailing slash keeps keyless/API-key behavior. Focused bug fix with regression tests covering URL classification, keyless request joining, and validation.

Re-trigger cubic</sub>