feat(robomp): added incoming PR review feature with classify and submit

- Added `review_pr` task that checks out PR head in a detached worktree, classifies rank/type/area, and posts a batched GitHub review as `event=COMMENT`.
- Added four new host tools: `fetch_pr`, `classify_pr`, `pr_review_comment`, and `submit_pr_review`; review tools self-gate on `review_mode`, push/open-PR tools refuse when `review_mode` is set.
- Added sqlite staging table `pr_review_comments` with `stage_review_comment`, `list_staged_review_comments`, and `clear_staged_review_comments` DAOs.
- Routed `pull_request.opened/reopened/ready_for_review` to `review_pr` and extended `pull_request.closed` cleanup to any tracked PR regardless of author.

python/robomp/tests/test_github_client.py

@@ -109,6 +109,117 @@ def test_get_pull_request_parses_head_repo_and_author() -> None:
     assert pr.author == "robomp-bot"
 
 
+def test_get_pull_request_parses_title_and_body() -> None:
+    def handler(request: httpx.Request) -> httpx.Response:
+        assert request.url.path == "/repos/octo/widget/pulls/9"
+        return httpx.Response(
+            200,
+            json={
+                "number": 9,
+                "html_url": "https://github.com/octo/widget/pull/9",
+                "title": "Fix crash",
+                "body": "Fixes #1",
+                "head": {"ref": "fix", "repo": {"full_name": "fork/widget"}},
+                "base": {"ref": "main"},
+                "state": "open",
+                "user": {"login": "alice"},
+            },
+        )
+
+    client = GitHubClient("tok", transport=httpx.MockTransport(handler))
+    pr = _run_async(client.get_pull_request("octo/widget", 9))
+    assert pr.title == "Fix crash"
+    assert pr.body == "Fixes #1"
+
+
+def test_list_pr_files_parses_changed_file_summary() -> None:
+    def handler(request: httpx.Request) -> httpx.Response:
+        assert request.url.path == "/repos/octo/widget/pulls/9/files"
+        assert request.url.params.get("per_page") == "100"
+        return httpx.Response(
+            200,
+            json=[{"filename": "src/app.py", "status": "modified", "additions": 5, "deletions": 2}],
+        )
+
+    client = GitHubClient("tok", transport=httpx.MockTransport(handler))
+    files = _run_async(client.list_pr_files("octo/widget", 9))
+    assert len(files) == 1
+    assert files[0].path == "src/app.py"
+    assert files[0].additions == 5
+    assert files[0].deletions == 2
+
+
+def test_list_pr_files_paginates_past_first_page() -> None:
+    seen_pages: list[str | None] = []
+
+    def handler(request: httpx.Request) -> httpx.Response:
+        assert request.url.path == "/repos/octo/widget/pulls/9/files"
+        page = request.url.params.get("page")
+        seen_pages.append(page)
+        if page == "1":
+            return httpx.Response(
+                200,
+                json=[
+                    {
+                        "filename": f"src/file-{idx}.py",
+                        "status": "modified",
+                        "additions": 1,
+                        "deletions": 0,
+                    }
+                    for idx in range(100)
+                ],
+            )
+        assert page == "2"
+        return httpx.Response(
+            200,
+            json=[{"filename": "src/final.py", "status": "added", "additions": 2, "deletions": 0}],
+        )
+
+    client = GitHubClient("tok", transport=httpx.MockTransport(handler))
+    files = _run_async(client.list_pr_files("octo/widget", 9))
+    assert seen_pages == ["1", "2"]
+    assert len(files) == 101
+    assert files[-1].path == "src/final.py"
+
+
+def test_submit_pr_review_posts_comment_event_and_inline_comments() -> None:
+    captured: dict[str, object] = {}
+
+    def handler(request: httpx.Request) -> httpx.Response:
+        import json
+
+        captured["path"] = request.url.path
+        captured["body"] = json.loads(request.content)
+        return httpx.Response(
+            200,
+            json={
+                "id": 44,
+                "user": {"login": "robomp-bot"},
+                "body": "summary",
+                "state": "COMMENTED",
+                "submitted_at": "t",
+            },
+        )
+
+    client = GitHubClient("tok", transport=httpx.MockTransport(handler))
+    review = _run_async(
+        client.submit_pr_review(
+            repo="octo/widget",
+            pr_number=9,
+            body="summary",
+            event="COMMENT",
+            comments=[{"path": "src/app.py", "line": 12, "side": "RIGHT", "body": "finding"}],
+        )
+    )
+    assert review.id == 44
+    assert captured["path"] == "/repos/octo/widget/pulls/9/reviews"
+    assert captured["body"] == {
+        "body": "summary",
+        "event": "COMMENT",
+        "comments": [{"path": "src/app.py", "line": 12, "side": "RIGHT", "body": "finding"}],
+    }
+
+
 def test_204_no_content_returns_none() -> None:
     transport = httpx.MockTransport(lambda r: httpx.Response(204))
     client = GitHubClient("tok", transport=transport)