feat: Initialize ESP-IDF project with core build configuration, component dependencies, and web frontend deployment.

Provider/main/CMakeLists.txt

@@ -1,2 +1,11 @@
 idf_component_register(SRCS  "main.cpp"
                     INCLUDE_DIRS ".")
+
+if(CONFIG_CALENDINK_DEPLOY_WEB_PAGES)
+    set(WEB_SRC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../frontend")
+    if(EXISTS ${WEB_SRC_DIR}/dist)
+        littlefs_create_partition_image(www ${WEB_SRC_DIR}/dist FLASH_IN_PROJECT)
+    else()
+        message(FATAL_ERROR "'${WEB_SRC_DIR}/dist' doesn't exist. Run 'npm run build' in frontend/ first.")
+    endif()
+endif()