feat: project scaffolding with PlatformIO config and boot skeleton

Co-authored-by: Cursor <cursoragent@cursor.com>

platformio.ini

@@ -0,0 +1,33 @@
+; PlatformIO configuration for M5Stack PaperColor Immich Frame
+[env:m5stack-papercolor]
+platform = espressif32 @ 6.12.0
+board = esp32s3box
+framework = arduino
+board_build.partitions = partitions_custom.csv
+board_upload.flash_size = 16MB
+board_upload.maximum_size = 16777216
+board_build.arduino.memory_type = qio_opi
+board_build.filesystem = littlefs
+monitor_speed = 115200
+upload_speed = 921600
+build_flags =
+    -DESP32S3
+    -DBOARD_HAS_PSRAM
+    -DCORE_DEBUG_LEVEL=3
+    -DARDUINO_USB_CDC_ON_BOOT=1
+    -DARDUINO_USB_MODE=1
+lib_deps =
+    m5stack/M5Unified @ ^0.2.2
+    m5stack/M5GFX @ ^0.2.5
+    https://github.com/m5stack/M5PM1.git
+    mathieucarbou/ESP Async WebServer @ ^3.0.6
+    bblanchon/ArduinoJson @ ^7.0.0
+lib_ignore =
+    WebServer
+
+[env:native]
+platform = native
+build_flags = -std=c++17
+test_framework = unity
+lib_deps =
+    bblanchon/ArduinoJson @ ^7.0.0