[BUG]: aira-backend breaks when enabling phoenix telemetry

[yxchia98]

Version

v1.2.0

Which installation method(s) does this occur on?

Docker

Describe the bug.

Following the guide to enable phoenix telemetry over at https://github.com/NVIDIA-AI-Blueprints/aiq-research-assistant/blob/v1.2.0/docs/phoenix-tracing.md, i encountered an error where aira-backend crashes when deploying using Docker Compose

general:
  use_uvloop: true

  telemetry:
    logging:
      console:
        _type: console
        level: WARN
    tracing:
      phoenix:
        _type: phoenix
        endpoint: http://phoenix:6006/v1/traces
        project: ai_researcher

Minimum reproducible example

Relevant log output

`2025-10-30 16:56:47,077 - nat.cli.commands.start - INFO - Starting NAT from config file: '/app/configs/config.yml'
2025-10-30 16:56:47,083 - nat.data_models.config - ERROR - Requested tracing type `phoenix` not found. Have you ensured the necessary package has been installed with `uv pip install`?
Available tracing names:
 - nat.plugins.opentelemetry/langfuse
 - nat.plugins.opentelemetry/langsmith
 - nat.plugins.opentelemetry/otelcollector
 - nat.plugins.opentelemetry/patronus
 - nat.plugins.opentelemetry/galileo
 - nat.observability/file
 - nat.plugins.weave/weave

2025-10-30 16:56:47,083 - nat.utils.exception_handlers.schemas - ERROR - Invalid configuration: general: Input tag 'phoenix' found using discriminator() does not match any of the expected tags: 'nat.plugins.opentelemetry/langfuse', 'nat.plugins.opentelemetry/langsmith', 'nat.plugins.opentelemetry/otelcollector', 'nat.plugins.opentelemetry/patronus', 'nat.plugins.opentelemetry/galileo', 'nat.observability/file', 'nat.plugins.weave/weave', 'langfuse', 'langsmith', 'otelcollector', 'patronus', 'galileo', 'file', 'weave'
Traceback (most recent call last):
  File "/app/.venv/lib/python3.12/site-packages/nat/utils/exception_handlers/schemas.py", line 72, in inner_function
    return func(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/nat/utils/data_models/schema_validator.py", line 30, in validate_schema
    raise e
  File "/app/.venv/lib/python3.12/site-packages/nat/utils/data_models/schema_validator.py", line 27, in validate_schema
    return Schema(**metadata)
           ^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/pydantic/main.py", line 214, in __init__
    validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)
                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
pydantic_core._pydantic_core.ValidationError: 1 validation error for Config
general.telemetry.tracing.phoenix
  Input tag 'phoenix' found using discriminator() does not match any of the expected tags: 'nat.plugins.opentelemetry/langfuse', 'nat.plugins.opentelemetry/langsmith', 'nat.plugins.opentelemetry/otelcollector', 'nat.plugins.opentelemetry/patronus', 'nat.plugins.opentelemetry/galileo', 'nat.observability/file', 'nat.plugins.weave/weave', 'langfuse', 'langsmith', 'otelcollector', 'patronus', 'galileo', 'file', 'weave' [type=union_tag_invalid, input_value={'_type': 'phoenix', 'end...oject': 'ai_researcher'}, input_type=dict]
    For further information visit https://errors.pydantic.dev/2.10/v/union_tag_invalid

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/app/.venv/bin/nat", line 10, in <module>
    sys.exit(run_cli())
             ^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/nat/cli/main.py", line 40, in run_cli
    cli(obj={}, auto_envvar_prefix='NAT', show_default=True, prog_name="nat")
  File "/app/.venv/lib/python3.12/site-packages/click/core.py", line 1442, in __call__
    return self.main(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/click/core.py", line 1363, in main
    rv = self.invoke(ctx)
         ^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/click/core.py", line 1830, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/click/core.py", line 1226, in invoke
    return ctx.invoke(self.callback, **ctx.params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/click/core.py", line 794, in invoke
    return callback(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/click/decorators.py", line 34, in new_func
    return f(get_current_context(), *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/nat/cli/commands/start.py", line 188, in invoke_subcommand
    config = validate_schema(config_dict, Config)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.venv/lib/python3.12/site-packages/nat/utils/exception_handlers/schemas.py", line 77, in inner_function
    raise ValueError(log_error_message) from e
ValueError: Invalid configuration: general: Input tag 'phoenix' found using discriminator() does not match any of the expected tags: 'nat.plugins.opentelemetry/langfuse', 'nat.plugins.opentelemetry/langsmith', 'nat.plugins.opentelemetry/otelcollector', 'nat.plugins.opentelemetry/patronus', 'nat.plugins.opentelemetry/galileo', 'nat.observability/file', 'nat.plugins.weave/weave', 'langfuse', 'langsmith', 'otelcollector', 'patronus', 'galileo', 'file', 'weave'
ubuntu@ubuntu:~/aiq-research-assistant$ docker compose -f deploy/compose/docker-compose.yaml --profile aira down`

Full env printout

Other/Misc.

No response

Code of Conduct

• I agree to follow THIS PROJECT's Code of Conduct
• I have searched the open bugs and have found no duplicates for this bug report