refactor(backend): alihkan EditLog ke zesdex-cms JsonlEditLogRepository

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

crates/zesdex-backend/src/app/state/rest.rs

@@ -15,8 +15,10 @@ use super::types::{Origin, Toast, TranscriptCache};
 use crate::app::lsp::LspManager;
 use crate::app::mcp::manager::McpManager;
 use crate::app::workflow::engine::WorkflowEngine;
-use crate::model::editlog::EditLog;
 use zesdex_cms::domain::app_config::AppConfig;
+use zesdex_cms::domain::edit_log::EditLog;
+use zesdex_cms::domain::repository::EditLogRepository;
+use zesdex_cms::infrastructure::persistence::edit_log_repo::JsonlEditLogRepository;
 use zesdex_cms::domain::repository::AppConfigRepository;
 use zesdex_cms::domain::repository::SettingsRepository;
 use zesdex_cms::domain::settings::Settings;
@@ -121,7 +123,10 @@ impl AppStateRest {
             abort_flag: Arc::new(std::sync::atomic::AtomicBool::new(false)),
             dir_cache: Arc::new(RwLock::new(dir_cache)),
             mention_index: MentionIndex::new(),
-            edit_log: EditLog::new(session_dir),
+            edit_log: JsonlEditLogRepository::new().open(session_dir).unwrap_or_else(|e| {
+                tracing::warn!("[state] failed to open edit log at '{}': {e}", session_dir.display());
+                EditLog::new()
+            }),
             session_runtime: Some(SessionRuntime::new(session_dir.to_path_buf())),
             workflow_engine: WorkflowEngine::new(),
             mcp_manager: McpManager::new(),