Update exit_node.ts

[felurta]

No description provided.

[therealaleph]

@felurta — this just hard-codes a specific PSK in place of the placeholder. The placeholder is intentional — it's a deliberate fail-closed signal: exit_node.ts returns 503 on every request until the user replaces it with their own random secret (e.g. openssl rand -hex 32). Hard-coding any specific value defeats that defense and would make the published default file insta-usable as an open relay.

If your goal was personal use of your own deployed exit node, don't open a PR — exit_node.ts is a template you copy into your own serverless deployment and customize there. Don't paste your real PSK in a PR or any other public place — anyone with both the PSK and the deployed URL can use your exit node as their own proxy. Rotate it now: change the value in your deployed source, redeploy, and update psk in your config.json.

Same pattern as #693 / #563 / #531. Closing.

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_{[reply via Anthropic Claude | reviewed by @therealaleph]}