Fix unguarded Pipfile read in pipenv_venv_in_project

Replace bare std::fs::read_to_string with read_regular_to_string_sync
to prevent hanging when Pipfile is a FIFO or device. This aligns with
the existing FIFO-safe reads used elsewhere in the python_crawler module.

Author: cursoragent

crates/socket-patch-core/src/crawlers/python_crawler.rs

@@ -380,7 +380,7 @@ fn pipenv_venv_in_project(cwd: &Path, var: &impl Fn(&str) -> Option<String>) ->
         Some(Err(text)) if !text.is_empty() => return Some(true),
         _ => {}
     }
-    let text = std::fs::read_to_string(cwd.join("Pipfile")).ok()?;
+    let text = read_regular_to_string_sync(&cwd.join("Pipfile")).ok()?;
     let doc = text.parse::<toml_edit::DocumentMut>().ok()?;
     let value = doc.get("pipenv")?.get("venv_in_project")?.as_value()?;
     // Python's `bool(value)` for the scalar shapes a Pipfile can hold.