Use LANGFUSE_BASE_URL instead of LANGFUSE_HOST in CLI credentials docs

[johnson-liang-appier]

Describe your idea or feedback

The skill's references/cli.md documents the host environment variable as LANGFUSE_HOST:

export LANGFUSE_HOST=https://cloud.langfuse.com

However, the official Langfuse CLI documentation uses LANGFUSE_BASE_URL, which is also consistent with the Langfuse SDK ecosystem. The CLI source code (src/cli.ts) confirms it accepts both, with LANGFUSE_BASE_URL checked first:

const host = (
  extracted["host"] ??
  process.env.LANGFUSE_BASE_URL ??
  process.env.LANGFUSE_HOST ??
  DEFAULT_HOST
).replace(/\/$/, "");

When users have LANGFUSE_BASE_URL in their .env (standard for Langfuse SDK projects), the skill's example using LANGFUSE_HOST causes confusion — they assume there's a mismatch and the CLI won't pick it up.

What would the ideal outcome look like?

Update references/cli.md to use LANGFUSE_BASE_URL as the primary example, consistent with the official docs and the Langfuse SDK ecosystem. LANGFUSE_HOST can be mentioned as a legacy alias if desired.

[Lotte-Verheyden]

Fixed in #43, thanks for the headsup!