consolidation: integrations/ orphan directory (no __init__.py) — merge into middleware/ or add contract

[Gradata]

Problem

src/gradata/integrations/ has no __init__.py and therefore no public contract. It contains four provider adapters (OpenAI, Anthropic, LangChain, CrewAI) plus embeddings.py and session_history.py.

src/gradata/middleware/ contains the same four provider adapters (via wrap_anthropic, wrap_openai, etc.) as the canonical surface.

This is effectively one surface with an orphaned sibling. integrations/openai_adapter.py and integrations/anthropic_adapter.py already carry deprecation warnings pointing to middleware.wrap_*.

Proposed resolution

Either:

A. Complete the migration: Delete the deprecated integrations/openai_adapter.py and integrations/anthropic_adapter.py (they've been deprecated; schedule v0.8.0 cleanup). Move embeddings.py and session_history.py somewhere with a clear home (likely adapters/ or their own module). Delete integrations/ as a directory.

B. Give integrations/ a contract: Add __init__.py with __all__ documenting what lives here and why it's separate from middleware/.

Option A is the likely right answer given the deprecation warnings already in place.

Context

Found by council architectural review of autoresearch/consolidation. The directory is invisible to help(gradata.integrations) — anyone adding a 5th adapter won't know the 4 existing ones are there.

[Gradata]

Fixed on branch autoresearch/consolidation in commit 14ffcc0a (restored integrations/__init__.py from origin/main) and expanded in 570e7b19 (3 more __init__.py files with real contracts).

The file has always contained lazy adapter aliasing (anthropic, openai, langchain, crewai → *_adapter modules) + deprecation notice pointing at gradata.middleware. The loop removed it as 'docstring-only' because the AST gate didn't treat _ADAPTER_ALIASES + __getattr__ as 'statements' in the way it expected.

On branch state:

"""Framework Integrations — DEPRECATED namespace.
   .. deprecated:: gradata.integrations deprecated — use gradata.middleware.
"""
import importlib as _importlib
_ADAPTER_ALIASES = { "openai": "openai_adapter", "anthropic": "anthropic_adapter",
                     "langchain": "langchain_adapter", "crewai": "crewai_adapter" }
def __getattr__(name): ...

Deprecation window remains until v0.8.0 (current: 0.6.0). Closing as resolved.