refactor: extract platform image provider

server-rs/crates/api-server/src/puzzle.rs

@@ -1,6 +1,6 @@
 use std::{
     collections::BTreeMap,
-    time::{Duration, Instant, SystemTime, UNIX_EPOCH},
+    time::{Instant, SystemTime, UNIX_EPOCH},
 };
 
 use axum::{
@@ -103,7 +103,7 @@ use crate::{
     },
     puzzle_gallery_cache::{build_puzzle_gallery_window_response, puzzle_gallery_cached_json},
     request_context::RequestContext,
-    state::PuzzleApiState,
+    state::{AppState, PuzzleApiState},
     work_author::resolve_puzzle_work_author_by_user_id,
     work_play_tracking::{WorkPlayTrackingDraft, record_puzzle_work_play_start_after_success},
 };