refactor: organize pilot packages

Group review, feedback, evaluation, observability, and entrypoint code into packages. Keep thin top-level compatibility shims for existing scripts and imports, and mirror the structure in the tests.

pilot/review_config.py

@@ -1,32 +1,5 @@
-"""Trusted repository configuration and opt-in policy."""
-from __future__ import annotations
-
-import base64
-import json
-import urllib.parse
-from collections.abc import Callable
-
-
-def repo_enabled(
-    get: Callable[..., tuple[int, bytes]],
-    api: str,
-    repo: str,
-    ref: str,
-    token: str,
-) -> bool:
-    """Read the opt-in flag from the trusted base branch.
-
-    The transport is injected so the policy is testable without a live Gitea.
-    Any missing, malformed, or non-boolean value disables review.
-    """
-    path = "contents/.pr-review.json?ref=" + urllib.parse.quote(ref, safe="")
-    status, raw = get(api, repo, path, token)
-    if status != 200:
-        return False
-    try:
-        envelope = json.loads(raw)
-        encoded = envelope.get("content", "").replace("\n", "")
-        config = json.loads(base64.b64decode(encoded).decode("utf-8", errors="replace"))
-    except (AttributeError, TypeError, ValueError, json.JSONDecodeError):
-        return False
-    return isinstance(config, dict) and config.get("enabled") is True
+"""Compatibility import for trusted review configuration."""
+import importlib
+import sys
+_module = importlib.import_module("review.config")
+sys.modules[__name__] = _module