refactor: rename project to LedGrab, split HA integration into separate repo

- Rename Python package: wled_controller -> ledgrab
- Rename env var prefix: WLED_ -> LEDGRAB_ (with auto-migration for old vars)
- Rename localStorage key: wled_api_key -> ledgrab_api_key (with migration)
- Rename HA integration domain: wled_screen_controller -> ledgrab
- Update all imports, build scripts, Docker, installer, config, docs
- Remove HA integration (moved to ledgrab-haos-integration repo)
- Remove hacs.json (belongs in HA repo now)
- Add startup warning for users with old WLED_ env vars
- All tests pass (715/715), ruff clean, tsc clean, frontend builds

server/tests/conftest.py

@@ -1,7 +1,7 @@
 """Pytest configuration and shared fixtures.
 
 IMPORTANT: This conftest patches the global config singleton BEFORE any test
-module can import ``wled_controller.main``.  ``main.py`` reads ``get_config()``
+module can import ``ledgrab.main``.  ``main.py`` reads ``get_config()``
 at module level to open the database — if the singleton is not patched first,
 the REAL production database (``data/ledgrab.db``) is opened and tests
 read/write/delete production data.
@@ -15,10 +15,10 @@ import pytest
 
 # ---------------------------------------------------------------------------
 # ISOLATE ALL TESTS FROM PRODUCTION DATA — must happen before any test module
-# imports ``wled_controller.main``.
+# imports ``ledgrab.main``.
 # ---------------------------------------------------------------------------
 
-import wled_controller.config as _config_mod  # noqa: E402
+import ledgrab.config as _config_mod  # noqa: E402
 
 _test_tmp = Path(tempfile.mkdtemp(prefix="wled_test_"))
 _test_db_path = str(_test_tmp / "test_ledgrab.db")
@@ -38,15 +38,15 @@ _config_mod.config = _test_config
 
 # ---------------------------------------------------------------------------
 
-from wled_controller.config import Config, StorageConfig, ServerConfig, AuthConfig  # noqa: E402
-from wled_controller.storage.database import Database  # noqa: E402
-from wled_controller.storage.device_store import Device, DeviceStore  # noqa: E402
-from wled_controller.storage.sync_clock import SyncClock  # noqa: E402
-from wled_controller.storage.sync_clock_store import SyncClockStore  # noqa: E402
-from wled_controller.storage.output_target_store import OutputTargetStore  # noqa: E402
-from wled_controller.storage.automation import Automation  # noqa: E402
-from wled_controller.storage.automation_store import AutomationStore  # noqa: E402
-from wled_controller.storage.value_source_store import ValueSourceStore  # noqa: E402
+from ledgrab.config import Config, StorageConfig, ServerConfig, AuthConfig  # noqa: E402
+from ledgrab.storage.database import Database  # noqa: E402
+from ledgrab.storage.device_store import Device, DeviceStore  # noqa: E402
+from ledgrab.storage.sync_clock import SyncClock  # noqa: E402
+from ledgrab.storage.sync_clock_store import SyncClockStore  # noqa: E402
+from ledgrab.storage.output_target_store import OutputTargetStore  # noqa: E402
+from ledgrab.storage.automation import Automation  # noqa: E402
+from ledgrab.storage.automation_store import AutomationStore  # noqa: E402
+from ledgrab.storage.value_source_store import ValueSourceStore  # noqa: E402
 
 
 # ---------------------------------------------------------------------------
@@ -244,12 +244,12 @@ def authenticated_client(test_config, monkeypatch):
 
     Patches global config so the app uses temp storage paths.
     """
-    import wled_controller.config as config_mod
+    import ledgrab.config as config_mod
 
     monkeypatch.setattr(config_mod, "config", test_config)
 
     from fastapi.testclient import TestClient
-    from wled_controller.main import app
+    from ledgrab.main import app
 
     client = TestClient(app, raise_server_exceptions=False)
     client.headers["Authorization"] = "Bearer test-api-key-12345"