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/storage/test_value_source_store.py

@@ -2,7 +2,7 @@
 
 import pytest
 
-from wled_controller.storage.value_source import (
+from ledgrab.storage.value_source import (
     AdaptiveValueSource,
     AnimatedValueSource,
     AudioValueSource,
@@ -10,7 +10,7 @@ from wled_controller.storage.value_source import (
     StaticValueSource,
     ValueSource,
 )
-from wled_controller.storage.value_source_store import ValueSourceStore
+from ledgrab.storage.value_source_store import ValueSourceStore
 
 
 @pytest.fixture
@@ -149,8 +149,10 @@ class TestValueSourceStoreCRUD:
 
     def test_create_animated(self, store):
         s = store.create_source(
-            name="A1", source_type="animated",
-            waveform="sawtooth", speed=20.0,
+            name="A1",
+            source_type="animated",
+            waveform="sawtooth",
+            speed=20.0,
         )
         assert isinstance(s, AnimatedValueSource)
         assert s.waveform == "sawtooth"
@@ -158,8 +160,10 @@ class TestValueSourceStoreCRUD:
 
     def test_create_audio(self, store):
         s = store.create_source(
-            name="Au1", source_type="audio",
-            audio_source_id="as_1", mode="beat",
+            name="Au1",
+            source_type="audio",
+            audio_source_id="as_1",
+            mode="beat",
         )
         assert isinstance(s, AudioValueSource)
         assert s.mode == "beat"
@@ -170,7 +174,9 @@ class TestValueSourceStoreCRUD:
             {"time": "20:00", "value": 1.0},
         ]
         s = store.create_source(
-            name="AT", source_type="adaptive_time", schedule=schedule,
+            name="AT",
+            source_type="adaptive_time",
+            schedule=schedule,
         )
         assert isinstance(s, AdaptiveValueSource)
         assert len(s.schedule) == 2
@@ -178,14 +184,18 @@ class TestValueSourceStoreCRUD:
     def test_create_adaptive_time_insufficient_schedule(self, store):
         with pytest.raises(ValueError, match="at least 2 points"):
             store.create_source(
-                name="Bad", source_type="adaptive_time",
+                name="Bad",
+                source_type="adaptive_time",
                 schedule=[{"time": "12:00", "value": 0.5}],
             )
 
     def test_create_daylight(self, store):
         s = store.create_source(
-            name="DL", source_type="daylight",
-            speed=2.0, use_real_time=True, latitude=48.0,
+            name="DL",
+            source_type="daylight",
+            speed=2.0,
+            use_real_time=True,
+            latitude=48.0,
         )
         assert isinstance(s, DaylightValueSource)
         assert s.use_real_time is True
@@ -247,7 +257,8 @@ class TestValueSourceNameUniqueness:
 
 class TestValueSourcePersistence:
     def test_persist_and_reload(self, tmp_path):
-        from wled_controller.storage.database import Database
+        from ledgrab.storage.database import Database
+
         db = Database(tmp_path / "vs_persist.db")
         s1 = ValueSourceStore(db)
         src = s1.create_source("Persist", "static", value=0.42)