mateo-berri 95fe8687c8 test(e2e/claude_code): add passthrough matrix row for the big-3 clouds and Anthropic API ...

Adds a 'passthrough' feature row to the Claude Code compat matrix that
drives the real claude CLI in each cloud's native mode against
LiteLLM's passthrough routes (the LLM-gateway setup from
code.claude.com/docs/en/gateway) instead of the /v1/messages
translation layer:

- anthropic: ANTHROPIC_BASE_URL={proxy}/anthropic, forwarded verbatim
  to api.anthropic.com
- bedrock_invoke: CLAUDE_CODE_USE_BEDROCK=1 against {proxy}/bedrock;
  the router resolves the alias in /model/{alias}/invoke-with-response-stream
- vertex_ai: CLAUDE_CODE_USE_VERTEX=1 against {proxy}/vertex_ai/v1;
  alias, project, location and credentials resolve from the deployment,
  which now sets use_in_pass_through: true (and the canonical
  vertex_project/vertex_location param names) in test_config.yaml
- azure: CLAUDE_CODE_USE_FOUNDRY=1 against {proxy}/azure via the
  AZURE_API_BASE/AZURE_API_KEY fallback (documented in the cron env
  example)
- bedrock_converse: not_applicable; Claude Code has no Converse-wire
  client

The shared cell body lives in _passthrough.py with injectable runner
and env (no monkeypatching), unit-covered in
_driver_unit_tests/test_passthrough.py including pins on the per-mode
CLI env contracts captured from a real claude CLI (2.1.210) run
against a request-logging sink.

2026-07-15 16:22:02 -07:00

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