fix: apply aishell review findings

- fix vim-plug URL typo (juneguyen -> junegunn) in install.zsh
- fix recent-dirs path to ~/.chpwd-recent-dirs in ais
- remove dead plugins (cdselect, fileselect, histselect) superseded by ais
- fix .gitignore to properly exclude target/ dirs

rust/ais/src/main.rs

@@ -46,7 +46,7 @@ fn get_dirs() -> Vec<String> {
     let mut dirs = vec![];
 
     // try zsh recent-dirs
-    let chpwd = format!("{}/.local/share/zsh/recent-dirs", home);
+    let chpwd = format!("{}/.chpwd-recent-dirs", home);
     if let Ok(content) = std::fs::read_to_string(&chpwd) {
         for line in content.lines() {
             let path = line.trim().replace("$'", "").replace('\'', "");