Please address the comments from this code review:##Individual Comments###Comment 1<location>`src/vcspull/cli/sync.py:225` </location><code_context>+       # Even if the remote branch exists, the lack of upstream tracking+       # can cause libvcs to construct invalid remote references+       # Check if there's a remote branch with the same name+       remote_ref = f"origin/{branch_name}"+       remote_branch = subprocess.run(+           ["git", "-C", str(repo_path), "rev-parse", "--verify", remote_ref],+           capture_output=True,</code_context><issue_to_address>Assumes 'origin' as remote; may not be correct for all repos.This approach may fail in repositories where the remote is not named 'origin'. Allow configuring the remote name or detect it automatically.Suggested implementation:```python# Even if the remote branch exists, the lack of upstream tracking# can cause libvcs to construct invalid remote references# Check if there's a remote branch with the same name# Detect remote name automatically            remote_name_proc= subprocess.run(                ["git","-C",str(repo_path),"remote"],capture_output=True,text=True,timeout=5,check=False,            )            remote_name="origin"if remote_name_proc.returncode==0:                remotes= remote_name_proc.stdout.strip().splitlines()if remotes:                    remote_name= remotes[0]# Use the first remote found            remote_ref=f"{remote_name}/{branch_name}"            remote_branch= subprocess.run(                ["git","-C",str(repo_path),"rev-parse","--verify", remote_ref],capture_output=True,```If you want to allow the remote name to be configured (e.g., via a function argumentor environment variable), you should:1. Add a parameter to the relevant function to accept`remote_name`, defaulting toNone.2. If`remote_name`is provided, use it; otherwise, detectas above.3. Optionally, checkfor an environment variable (e.g.,`VCS_REMOTE_NAME`) before falling back to detection.You may need to propagate this parameter through function callsor configuration.</issue_to_address>### Comment 2<location>`src/vcspull/cli/sync.py:246`</location><code_context>+returnFalse# Git command failed or not available+++def handle_branch_error(repo_dict: dict[str, t.Any])->None:+"""Handle branch-related errors by showing helpful instructions.+</code_context><issue_to_address>Consider logging errors instead of only printing to stderr.Using the logger will improve error traceability and make integration with monitoring tools easier.Suggested implementation:```pythonimport loggingimport subprocessimport sysimport typing as tfrom copy import deepcopylogger = logging.getLogger(__name__)``````pythondef handle_branch_error(repo_dict: dict[str, t.Any]) -> None:"""Handle branch-related errors by showing helpful instructions.    logger.error("Branch-related error detected for repository:%s\n""Please check your branch configuration and ensure upstream tracking is set correctly.",        repo_dict.get("name","<unknown>")    )```</issue_to_address>### Comment 3<location>`tests/test_sync.py:322`</location><code_context>+def test_check_branch_state(tmp_path: pathlib.Path)->None:</code_context><issue_to_address>Consider adding testsfor detachedHEADand missing repo path edge cases.Tests currently cover typical branch states butnot detachedHEADor missing'path'in repo_dict. Including these cases will improve coverageand error handling.</issue_to_address>### Comment 4<location>`tests/test_sync.py:411`</location><code_context>+def test_handle_branch_error(</code_context><issue_to_address>Test only checks first5 branches; consider parametrizingfor different branch counts.Parametrize the test to cover scenarioswith fewer, exactly,and more than5 branches to improve coverage.Suggested implementation:```pythonimport pytest@pytest.mark.parametrize("branches",    [        ["main","dev"],# fewer than 5        ["main","dev","feature1","feature2","feature3"],# exactly 5        ["main","dev","feature1","feature2","feature3","hotfix"],# more than 5    ],)def test_handle_branch_error(    branches,    tmp_path: pathlib.Path,    capsys: pytest.CaptureFixture[str])->None:"""Test that handle_branch_error shows helpful error message for different branch counts."""repo_dict= {"name":"test-repo","url":"git@github.com:user/repo.git","path": tmp_path/"test-repo",    }# Create a mock git directory for testing# Simulate branches in the repo# You may need to adjust the following lines to fit your repo setup logicrepo_path= repo_dict["path"]    repo_path.mkdir(parents=True,exist_ok=True)    (repo_path/".git").mkdir()# Simulate branch list# If your code uses subprocess to get branches, you may need to patch subprocess.run# For now, we just show how to use the branches variable in the test# Example: pass branches to the function or mock the function that lists branches# ... rest of your test logic here, using the branches variable ...```You will need to adjust the test logic to use the`branches` variable, depending on how your code fetches branch names (e.g., patching subprocessor passing directly). If you use subprocess to get branches, consider patching it toreturn the`branches`listfor each test case.</issue_to_address>## Security Issues### Issue 1<location>`src/vcspull/cli/sync.py:262`</location><issue_to_address>**security (python.lang.security.audit.dangerous-subprocess-use-audit):** Detected subprocess function'run' without a static string. If this data can be controlled by a malicious actor, it may be an instance of command injection. Audit the use of this call to ensure itisnot controllable by an external resource. You may consider using'shlex.escape()'.*Source: opengrep*</issue_to_address>