refactor: split pilot architecture

Remove the obsolete dashboard now that Langfuse is the analytics surface.\nIntroduce focused transport, model, and configuration modules while preserving the ai_review facade, and document the current runtime architecture.

pilot/webhook_server.py

@@ -46,6 +46,7 @@ import urllib.parse
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 
 from ai_review import gitea_get, review_pr
+from review_config import repo_enabled
 
 try:
     import feedback_harvest  # optional — absent in CI-step pod, present in
@@ -102,21 +103,7 @@ def is_repo_enabled(api: str, repo: str, ref: str, token: str) -> bool:
     The bool-coerce of `.get("enabled") is True` rejects the common
     gotchas (`null`, `1`, `"yes"`, missing field all yield False).
     """
-    code, raw = gitea_get(
-        api, repo,
-        "contents/.pr-review.json?ref=" + urllib.parse.quote(ref, safe=""),
-        token,
-    )
-    if code != 200:
-        return False
-    try:
-        data = json.loads(raw)
-        content_b64 = data.get("content", "").replace("\n", "")
-        decoded = base64.b64decode(content_b64).decode("utf-8", errors="replace")
-        cfg = json.loads(decoded)
-    except (json.JSONDecodeError, ValueError):
-        return False
-    return isinstance(cfg, dict) and cfg.get("enabled") is True
+    return repo_enabled(gitea_get, api, repo, ref, token)
 
 
 def _verify_signature(raw_body: bytes, headers) -> bool:
@@ -316,4 +303,4 @@ def main() -> int:
 
 
 if __name__ == "__main__":
-    raise SystemExit(main())
+    raise SystemExit(main())