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/pyproject.toml

@@ -3,7 +3,7 @@ requires = ["setuptools>=68.0", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [project]
-name = "wled-screen-controller"
+name = "ledgrab"
 version = "0.3.0"
 description = "Ambient lighting system that captures screen content and drives LED strips in real time"
 authors = [
@@ -83,10 +83,10 @@ perf = [
 ]
 
 [project.urls]
-Homepage = "https://git.dolgolyov-family.by/alexei.dolgolyov/wled-screen-controller-mixed"
-Repository = "https://git.dolgolyov-family.by/alexei.dolgolyov/wled-screen-controller-mixed"
-Documentation = "https://git.dolgolyov-family.by/alexei.dolgolyov/wled-screen-controller-mixed/src/branch/master/INSTALLATION.md"
-Issues = "https://git.dolgolyov-family.by/alexei.dolgolyov/wled-screen-controller-mixed/issues"
+Homepage = "https://git.dolgolyov-family.by/alexei.dolgolyov/ledgrab"
+Repository = "https://git.dolgolyov-family.by/alexei.dolgolyov/ledgrab"
+Documentation = "https://git.dolgolyov-family.by/alexei.dolgolyov/ledgrab/src/branch/master/INSTALLATION.md"
+Issues = "https://git.dolgolyov-family.by/alexei.dolgolyov/ledgrab/issues"
 
 [tool.setuptools]
 package-dir = {"" = "src"}
@@ -97,7 +97,7 @@ where = ["src"]
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 asyncio_mode = "auto"
-addopts = "-v --cov=wled_controller --cov-report=html --cov-report=term"
+addopts = "-v --cov=ledgrab --cov-report=html --cov-report=term"
 
 [tool.black]
 line-length = 100