feat: CLI 补全至 GUI 功能 100% 对等 — 新增 9 条命令

新增: edit, move-up, move-down, clean, enable, disable, import, export, backup
core: registry.rs +clean_paths, fs.rs +import_paths +export_paths
CLI 特有增强: move-up/move-down 支持 --steps N 一次移动多格

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

core/src/fs.rs

@@ -2,3 +2,105 @@
 pub fn read_text_file(path: &str) -> Result<String, String> {
     std::fs::read_to_string(path).map_err(|e| format!("无法读取文件: {}", e))
 }
+
+/// 导入路径文件（JSON / CSV / TXT），返回 (系统路径, 用户路径)
+pub fn import_paths(path: &str, content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let ext = std::path::Path::new(path)
+        .extension()
+        .map(|e| e.to_ascii_lowercase())
+        .unwrap_or_default();
+    let ext = ext.to_string_lossy();
+
+    match ext.as_ref() {
+        "json" => import_json(content),
+        "csv" => import_csv(content),
+        "txt" => import_txt(content),
+        _ => Err(format!("不支持的格式: .{}", ext)),
+    }
+}
+
+fn import_json(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    #[derive(serde::Deserialize)]
+    struct ImportData {
+        #[serde(default)]
+        system: Vec<String>,
+        #[serde(default)]
+        user: Vec<String>,
+    }
+    let data: ImportData =
+        serde_json::from_str(content).map_err(|e| format!("JSON 解析失败: {}", e))?;
+    Ok((data.system, data.user))
+}
+
+fn import_csv(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let mut sys = Vec::new();
+    let mut usr = Vec::new();
+    for line in content.lines() {
+        let fields: Vec<&str> = line.split(',').collect();
+        if fields.len() >= 2 {
+            match fields[0].trim() {
+                "system" | "sys" => sys.push(fields[1].trim().to_string()),
+                "user" | "usr" => usr.push(fields[1].trim().to_string()),
+                _ => {}
+            }
+        }
+    }
+    if sys.is_empty() && usr.is_empty() {
+        return Err("CSV 文件中未找到有效路径".into());
+    }
+    Ok((sys, usr))
+}
+
+fn import_txt(content: &str) -> Result<(Vec<String>, Vec<String>), String> {
+    let paths: Vec<String> = content
+        .lines()
+        .map(|l| l.trim().to_string())
+        .filter(|l| !l.is_empty() && !l.starts_with('#'))
+        .collect();
+    if paths.is_empty() {
+        return Err("TXT 文件中未找到路径".into());
+    }
+    // TXT 格式全部导入为用户路径
+    Ok((vec![], paths))
+}
+
+/// 导出 PATH 为指定格式字符串
+pub fn export_paths(sys: &[String], usr: &[String], format: &str) -> String {
+    match format {
+        "json" => {
+            let data = serde_json::json!({
+                "version": "5.0.0",
+                "timestamp": chrono::Local::now().format("%Y-%m-%dT%H:%M:%S").to_string(),
+                "system": sys,
+                "user": usr,
+            });
+            serde_json::to_string_pretty(&data).unwrap_or_default()
+        }
+        "csv" => {
+            let mut out = String::from("type,path\n");
+            for p in sys {
+                out.push_str(&format!("system,{}\n", p));
+            }
+            for p in usr {
+                out.push_str(&format!("user,{}\n", p));
+            }
+            out
+        }
+        _ => {
+            let mut out = String::new();
+            if !sys.is_empty() {
+                out.push_str(&format!("# 系统 PATH ({})\n", sys.len()));
+                for p in sys {
+                    out.push_str(&format!("{}\n", p));
+                }
+            }
+            if !usr.is_empty() {
+                out.push_str(&format!("# 用户 PATH ({})\n", usr.len()));
+                for p in usr {
+                    out.push_str(&format!("{}\n", p));
+                }
+            }
+            out
+        }
+    }
+}

core/src/registry.rs

@@ -81,6 +81,29 @@ fn join_path(paths: &[String]) -> String {
         .join(";")
 }
 
+/// 清理路径列表：移除不存在的目录 + 重复路径（保留首次出现）
+/// 返回 (保留的路径, 被移除的路径)
+pub fn clean_paths(paths: Vec<String>) -> (Vec<String>, Vec<String>) {
+    use std::collections::HashSet;
+    let mut seen: HashSet<String> = HashSet::new();
+    let mut kept = Vec::new();
+    let mut removed = Vec::new();
+    for p in paths {
+        let key = p.trim().to_lowercase();
+        if seen.contains(&key) {
+            removed.push(p);
+            continue;
+        }
+        seen.insert(key);
+        if !p.contains('%') && !std::path::Path::new(&p).is_dir() {
+            removed.push(p);
+            continue;
+        }
+        kept.push(p);
+    }
+    (kept, removed)
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;