fix: remove unused imports and fix settings default error

Co-authored-by: aider (openai/andrew/openrouter/qwen/qwen3-coder) <aider@aider.chat>

src/meta_plugin/binary.rs

@@ -2,7 +2,7 @@ use anyhow::Result;
 use rusqlite::Connection;
 
 use crate::common::is_binary::is_binary;
-use crate::meta_plugin::{MetaPlugin, output_metadata};
+use crate::meta_plugin::MetaPlugin;
 
 #[derive(Debug, Clone, Default)]
 pub struct BinaryMetaPlugin {

src/meta_plugin/digest.rs

@@ -3,7 +3,7 @@ use sha2::{Digest, Sha256};
 use std::time::Instant;
 use rusqlite::Connection;
 
-use crate::meta_plugin::{MetaPlugin, output_metadata};
+use crate::meta_plugin::MetaPlugin;
 
 #[derive(Debug, Clone, Default)]
 pub struct DigestSha256MetaPlugin {

src/meta_plugin/magic.rs

@@ -3,7 +3,7 @@ use magic::{Cookie, CookieFlags};
 use rusqlite::Connection;
 use std::io;
 
-use crate::meta_plugin::{MetaPlugin, output_metadata};
+use crate::meta_plugin::MetaPlugin;
 
 #[derive(Debug)]
 pub struct MagicFileMetaPlugin {

src/meta_plugin/system.rs

@@ -7,7 +7,7 @@ use std::process;
 use uzers::{get_current_uid, get_current_gid, get_current_username, get_current_groupname};
 use rusqlite::Connection;
 
-use crate::meta_plugin::{MetaPlugin, output_metadata};
+use crate::meta_plugin::MetaPlugin;
 
 #[derive(Debug, Clone, Default)]
 pub struct CwdMetaPlugin {