The repo secret is named DEEPSEEK_API_KEY_EXTERNAL; map it to the DEEPSEEK_API_KEY env var the e2e suites read (process.env.DEEPSEEK_API_KEY).
The repo secret is named DEEPSEEK_API_KEY_EXTERNAL; map it to the DEEPSEEK_API_KEY env var the e2e suites read (process.env.DEEPSEEK_API_KEY).