fix: handle PathBuf correctly

src/import/csv_parser.rs

@@ -1,15 +1,17 @@
+use std::path::Path;
+
 use anyhow::{Context, Result};
 use csv::ReaderBuilder;
 use serde_json::Value;
 
 /// Parse a CSV file and return records as serde_json::Value array
-pub fn parse_csv(path: &str) -> Result<Vec<Value>> {
+pub fn parse_csv(path: &Path) -> Result<Vec<Value>> {
     let mut reader = ReaderBuilder::new()
         .has_headers(true)
         .flexible(true)
         .trim(csv::Trim::All)
         .from_path(path)
-        .with_context(|| format!("Failed to open CSV file: {path}"))?;
+        .with_context(|| format!("Failed to open CSV file: {}", path.display()))?;
 
     // Detect if first row looks like headers (strings) or data (mixed)
     let has_headers = reader.headers().is_ok();