Various improvements (#461)
* **New Features** * Time and delay utilities added (ticks, ms, µs); SD card now uses an expansion-header CS pin; HTTP downloads warn when run on the GUI task and yield to avoid blocking. * **Bug Fixes / Reliability** * Many hard-crash paths converted to guarded checks to reduce abrupt termination and improve stability. * **Tests** * Unit tests added to validate time and delay accuracy. * **Chores** * License header and build/macro updates.
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@@ -45,7 +45,7 @@ class ImageViewerApp final : public App {
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lv_obj_align_to(file_label, wrapper, LV_ALIGN_BOTTOM_LEFT, 0, 0);
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std::shared_ptr<const Bundle> bundle = app.getParameters();
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tt_check(bundle != nullptr, "Parameters not set");
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check(bundle != nullptr, "Parameters not set");
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std::string file_argument;
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if (bundle->optString(IMAGE_VIEWER_FILE_ARGUMENT, file_argument)) {
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std::string prefixed_path = lvgl::PATH_PREFIX + file_argument;
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