Merge develop into main (#343)

- Refactor `AppManifest`: add new fields and rename existing ones
- Parse and validate the manifest from an app that is being installed.
- Remove deprecated `scoped()` from `Lock`
- Create `Tactility/Paths.h`
- App loading at boot now properly parses the manifest files of external apps
- Properly lock both source and destination locations during app install
- Remove LVGL path variants from `AppPaths` and `ServicePaths`
- Removed `xPath` base classes for apps and services. There's now `AppPaths` and `ServicePaths`.
- Renamed app and service paths: "data" and "system" paths are now "user data" and "assets"

Tactility/Source/service/ServicePaths.cpp

@@ -0,0 +1,35 @@
+#include <Tactility/service/ServicePaths.h>
+
+#include <Tactility/service/ServiceManifest.h>
+#include <Tactility/MountPoints.h>
+
+#include <cassert>
+#include <format>
+
+#ifdef ESP_PLATFORM
+constexpr auto PARTITION_PREFIX = std::string("/");
+#else
+constexpr auto PARTITION_PREFIX = std::string("");
+#endif
+
+namespace tt::service {
+
+std::string ServicePaths::getUserDataDirectory() const {
+    return std::format("{}{}/service/{}", PARTITION_PREFIX, file::DATA_PARTITION_NAME, manifest->id);
+}
+
+std::string ServicePaths::getUserDataPath(const std::string& childPath) const {
+    assert(!childPath.starts_with('/'));
+    return std::format("{}/{}", getUserDataDirectory(), childPath);
+}
+
+std::string ServicePaths::getAssetsDirectory() const {
+    return std::format("{}{}/service/{}/assets", PARTITION_PREFIX, file::SYSTEM_PARTITION_NAME, manifest->id);
+}
+
+std::string ServicePaths::getAssetsPath(const std::string& childPath) const {
+    assert(!childPath.starts_with('/'));
+    return std::format("{}/{}", getAssetsDirectory(), childPath);
+}
+
+}