fix: resolve compilation errors by adding missing imports and fixing schema definitions

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

src/modes/server/pages.rs

@@ -1,4 +1,3 @@
-use crate::db::{self, Item, Tag, Meta};
 use crate::modes::server::AppState;
 use anyhow::Result;
 use axum::{
@@ -7,9 +6,6 @@ use axum::{
 };
 use rusqlite::Connection;
 use serde::Deserialize;
-use std::collections::HashMap;
-use std::sync::Arc;
-use tokio::sync::Mutex;
 
 #[derive(Deserialize)]
 pub struct ListQueryParams {