fix: fix unused imports and db initialization error

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

src/main.rs

@@ -166,7 +166,7 @@ fn main() -> Result<(), Error> {
         .with_context(|| format!("Unable to create data directory {:?}", data_path))?;
 
     // Initialize database
-    let mut conn = db::init(&db_path)?;
+    let mut conn = db::init_db(&db_path)?;
 
     match mode {
         KeepModes::Save => modes::save::mode_save(&mut cmd, &settings, ids, tags, &mut conn, data_path),

src/modes/save.rs

@@ -130,7 +130,7 @@ fn setup_item_metadata(
     Ok(())
 }
 
-fn collect_item_meta(settings: &config::Settings) -> std::collections::HashMap<String, String> {
+fn collect_item_meta(_settings: &config::Settings) -> std::collections::HashMap<String, String> {
     let mut item_meta: std::collections::HashMap<String, String> = crate::modes::common::get_meta_from_env();
 
     if let Ok(hostname) = gethostname::gethostname().into_string() {

src/modes/server.rs

@@ -17,7 +17,7 @@ pub mod common;
 mod api;
 mod pages;
 
-pub use common::{ServerConfig, AppState, logging_middleware, create_auth_middleware};
+pub use common::{AppState, logging_middleware, create_auth_middleware};
 
 pub fn mode_server(
     _cmd: &mut Command,