Fix CI: install basedpyright language server

[Copilot]

CI tests were failing because the basedpyright language server executable was not available in the test environment. The LSP client attempted to spawn basedpyright processes, resulting in ConnectionResetError and BrokenResourceError exceptions that surfaced as cryptic "unhandled errors in a TaskGroup" failures.

Changes

• Add npm installation step for basedpyright in CI workflow before test execution

The basedpyright package is required at runtime by the LSP client but was not explicitly installed in the CI environment, unlike development environments where language servers are typically pre-installed.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• astral.sh
  • Triggering command: /usr/bin/curl curl -LsSf REDACTED (dns block)
• dl.deno.land
  • Triggering command: /bin/deno deno lsp (dns block)
• esm.sh
  • Triggering command: /bin/deno deno lsp (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

排查并解决ci失败问题

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