Merge develop into main (#348)

## App state

Improved app state management in `LoaderService` and `GuiService`:

- Re-ordered some of the state transitions
- Hardened `GuiService` for repeated events (that might trigger a re-render of an app that's already rendered)
- Validate state transitions in `LoaderService` and crash if an app transitions from the wrong state to the next one.

## LoaderService

- Removed `tt::loader::` functions and expose `LoaderService` interface publicly.
- Implement `stopAll()` and `stopAll(id)` which stops all instances of an app, including any apps that were launched by it.
- Rename `stop()` functions to `stopTop()`
- Created `stopTop(id)` which only stops the top-most app when the app id matches.
- Moved `loader::LoaderEvent` to `loader::LoaderService::Event`
- Changed app instance `std::stack` to `std::vector`

## Improvements

- `ElfApp`: error 22 now shows a hint that `main()` might be missing
- Starting, installing and uninstalling apps now stops any running app (and its children) on the stack

## Bugfixes

- `HttpdReq` out of memory issue now shows an error message and doesn't crash anymore (this would happen on devices without PSRAM with WiFi active, when an app was installed)
- `GuiService::hideApp()` lock should not wait for timeout and now waits indefinitely
- `Buildscript/release-sdk-current.sh` deletes the previous local release before building a new one

## Code correctness

- App classes were made `final`
- Apps that had a `void start()` now have a `LaunchId start()`
- `tt::app::State`: renamed `Started` to `Created` and `Stopped` to `Destroyed` to properly reflect earlier name changes

Tactility/Source/app/settings/Settings.cpp

@@ -1,6 +1,6 @@
-#include "Tactility/app/AppRegistration.h"
-#include "Tactility/lvgl/Toolbar.h"
-#include "Tactility/service/loader/Loader.h"
+#include <Tactility/app/AppRegistration.h>
+#include <Tactility/lvgl/Toolbar.h>
+#include <Tactility/service/loader/Loader.h>
 
 #include <Tactility/Assets.h>
 #include <Tactility/Check.h>
@@ -12,7 +12,7 @@ namespace tt::app::settings {
 
 static void onAppPressed(lv_event_t* e) {
     const auto* manifest = static_cast<const AppManifest*>(lv_event_get_user_data(e));
-    service::loader::startApp(manifest->appId);
+    start(manifest->appId);
 }
 
 static void createWidget(const std::shared_ptr<AppManifest>& manifest, void* parent) {
@@ -23,7 +23,7 @@ static void createWidget(const std::shared_ptr<AppManifest>& manifest, void* par
     lv_obj_add_event_cb(btn, &onAppPressed, LV_EVENT_SHORT_CLICKED, (void*)manifest.get());
 }
 
-class SettingsApp : public App {
+class SettingsApp final : public App {
 
     void onShow(AppContext& app, lv_obj_t* parent) override {
         lv_obj_set_flex_flow(parent, LV_FLEX_FLOW_COLUMN);
@@ -36,7 +36,7 @@ class SettingsApp : public App {
         lv_obj_set_flex_grow(list, 1);
 
         auto manifests = getApps();
-        std::sort(manifests.begin(), manifests.end(), SortAppManifestByName);
+        std::ranges::sort(manifests, SortAppManifestByName);
         for (const auto& manifest: manifests) {
             if (manifest->appCategory == Category::Settings) {
                 createWidget(manifest, list);