fix: remove unused imports and resolve config module conflicts

Co-authored-by: aider (openai/andrew/openrouter/anthropic/claude-sonnet-4) <aider@aider.chat>

src/modes/update.rs

@@ -5,7 +5,8 @@ use std::str::FromStr;
 use crate::compression_engine::{CompressionType, get_compression_engine};
 use crate::db;
 use crate::meta_plugin;
-use crate::modes::common::{cmd_args_digest_type, get_digest_type_meta};
+use crate::modes::common::get_digest_type_meta;
+use crate::config;
 use clap::Command;
 use clap::error::ErrorKind;
 use log::{debug, info};
@@ -13,8 +14,8 @@ use rusqlite::Connection;
 
 pub fn mode_update(
     cmd: &mut Command,
-    settings: &crate::config::Settings,
-    _config: &crate::config::Config,
+    settings: &config::Settings,
+    _config: &config::Config,
     ids: &mut Vec<i64>,
     tags: &mut Vec<String>,
     conn: &mut Connection,