refactor: api cleanup (#7812)

* refactor(config): unify YAML persistence

* refactor(config): remove redundant config APIs

* refactor(config): remove unused config APIs

* refactor(config): narrow profile APIs

* fix(config): preserve profiles on invalid reorder

* refactor(startup): narrow resolve helpers

* refactor(config): unify mixed port defaults

* refactor(network): simplify response APIs

* refactor(config): make profile builders infallible

* refactor(config): make profile activation infallible

* refactor(api): simplify internal runtime APIs

* refactor: consolidate internal config and window APIs

src-tauri/src/core/manager/mod.rs

@@ -263,7 +263,7 @@ impl CoreManager {
                         crate::config::Config::notify_startup_mixed_port_fallback();
                         return Err(start_error);
                     }
-                    match crate::config::Config::retry_startup_mixed_port_fallback().await {
+                    match crate::config::Config::resolve_startup_mixed_port().await {
                         Ok(true) => {
                             retries += 1;
                             logging!(

src-tauri/src/core/timer.rs

@@ -153,7 +153,7 @@ impl Timer {
         // Redundant with first_delay == ZERO, kept as the immediate path; mark_task_running
         // no-ops whichever of the two arrives second.
         let cur_timestamp = chrono::Local::now().timestamp();
-        if let Some(items) = Config::profiles().await.data_arc().get_items() {
+        if let Some(items) = Config::profiles().await.data_arc().items.as_ref() {
             for item in items.iter() {
                 if let Some(option) = item.option.as_ref()
                     && option.allow_auto_update.unwrap_or(true)
@@ -204,7 +204,7 @@ impl Timer {
     }
 
     async fn gen_map(&self) -> HashMap<String, TaskSchedule> {
-        if let Some(items) = Config::profiles().await.data_arc().get_items() {
+        if let Some(items) = Config::profiles().await.data_arc().items.as_ref() {
             return Self::gen_map_from_items(items);
         }
 
@@ -446,7 +446,7 @@ impl Timer {
         let task_interval = *self.timer_map.read().get(uid)?;
         let profiles = Config::profiles().await;
         let profiles_guard = profiles.latest_arc();
-        let items = profiles_guard.get_items()?;
+        let items = profiles_guard.items.as_ref()?;
 
         let profile = items.iter().find(|item| item.uid.as_deref() == Some(uid))?;
         let updated = profile.updated.unwrap_or(0) as i64;

src-tauri/src/core/tray/mod.rs

@@ -294,7 +294,7 @@ impl Tray {
         {
             let profiles = Config::profiles().await;
             let profiles = profiles.latest_arc();
-            if let Some(current_profile_uid) = profiles.get_current()
+            if let Some(current_profile_uid) = profiles.current.as_ref()
                 && let Ok(profile) = profiles.get_item(current_profile_uid)
             {
                 current_profile_name = match &profile.name {