chore(license): update MIT license year and add SPDX identifiers

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2022 Smart Swimmingpool
+Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/PoolController.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 import logging
 import machine
 import time

src/boot.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 # This file is executed on every boot (including wake-boot from deepsleep)
 # import esp
 # esp.osdebug(None)

src/main.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 import logging
 import time
 

src/setup/installer.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 import mip
 
 class Installer:

src/timesync.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 # Adapted from official ntptime by Peter Hinch July 2022
 # The main aim is portability:
 # Detects host device's epoch and returns time relative to that.

src/utils.py

@@ -1,3 +1,7 @@
+# Copyright (c) 2018-2026 Smart Swimming Pool, Stephan Strittmatter
+#
+# SPDX-License-Identifier: MIT
+
 import os
 
 def does_fs_entry_exists(filename: str) -> bool: