[fix]. Log rejected non-allowlisted repos

TODO.md

@@ -12,6 +12,7 @@
 - [ ] `TEST`: Add integration test proving the runner executes the exact PR head SHA in isolated mode and does not rely on host checkout.
 
 ### P1 (Important)
+- [x] `BUG`: Log webhook events rejected because repo is not listed in `ALLOWED_REPOS`.
 - [ ] `FEATURE`: Full control UI to update the bots settings. Password in env variable protected login page. No more env variables.
 - [ ] `FEATURE`: Automatic Trigger on new PRs and or commits on PRs with context that its a change that needs review not the whole PR again. GITEA_ALLOW_PR_AUTO_REVIEW=true would be needed
 - [ ] `BUG`: Container runner hardcodes `codex exec --json -m gpt-5`; use `OPENAI_REVIEW_MODEL` and `OPENAI_REASONING_EFFORT` consistently across runner paths.

src/gitea_codex_bot/main.py

@@ -313,6 +313,13 @@ async def gitea_webhook(
         )
 
     if repo not in settings.allowed_repo_set:
+        logger.info(
+            "Webhook ignored: repo not in ALLOWED_REPOS repo=%s pr=%s comment_id=%s sender=%s",
+            repo,
+            pr_number,
+            comment_id,
+            sender_username,
+        )
         return {"accepted": False, "reason": "repo not allowed"}
 
     inserted = persist_webhook_event(

tests/test_webhook.py

@@ -147,6 +147,34 @@ def test_webhook_logs_when_codex_command_is_not_review(monkeypatch) -> None:
     assert any("Webhook without @codex review command" in item for item in messages)
 
 
+def test_webhook_logs_when_repo_not_allowed(monkeypatch) -> None:
+    messages: list[str] = []
+
+    def _log_info(message: str, *args, **_kwargs) -> None:
+        messages.append(message % args if args else message)
+
+    monkeypatch.setattr("gitea_codex_bot.main.logger.info", _log_info)
+    client = TestClient(app)
+    payload_obj = _payload("@codex review", username="alice", comment_id=225)
+    payload_obj["repository"]["full_name"] = "acme/not-allowed"
+    raw = json.dumps(payload_obj).encode()
+
+    response = client.post(
+        "/webhook/gitea",
+        content=raw,
+        headers={
+            "X-Gitea-Event": "issue_comment",
+            "X-Gitea-Delivery": "d-6",
+            "X-Gitea-Signature": _sign(raw),
+            "Content-Type": "application/json",
+        },
+    )
+
+    assert response.status_code == 200
+    assert response.json()["reason"] == "repo not allowed"
+    assert any("Webhook ignored: repo not in ALLOWED_REPOS" in item for item in messages)
+
+
 def test_webhook_rejects_review_when_repo_config_disabled(monkeypatch) -> None:
     posted_comments: list[str] = []