style: ruff format on PR-touched files

CI's Ruff Lint job runs `ruff format --check` on changed files; my
local pre-push runs ran `ruff check` only and missed the formatter
deltas. No semantic changes — line-wrap, trailing-comma, and string-
quote normalization on the six files this PR touches.

Author: kingpanther13

src/ha_mcp/__main__.py

@@ -83,7 +83,9 @@ def _get_oauth_client(self) -> "HomeAssistantClient":
             logger.error(
                 f"OAuth token missing HA credentials. Keys present: {list(claims.keys()) if claims else []}"
             )
-            raise HomeAssistantAuthError("No Home Assistant credentials in OAuth token claims")
+            raise HomeAssistantAuthError(
+                "No Home Assistant credentials in OAuth token claims"
+            )
 
         ha_token = claims["ha_token"]
 
@@ -958,6 +960,7 @@ async def _run_oauth_server(ha_url: str, base_url: str, port: int, path: str) ->
     register_browser_landing(mcp, path)
 
     from ha_mcp.settings_ui import register_settings_routes
+
     register_settings_routes(mcp, _server, secret_path=path)
 
     tools = await mcp.list_tools()

src/ha_mcp/settings_ui.py

@@ -1087,7 +1087,9 @@ async def _restart_addon(request: Request) -> JSONResponse:
             # Supervisor socket misconfigured) and means the restart was
             # never initiated. Falls through to the `httpx.HTTPError`
             # handler below, which returns 502 + CONNECTION_FAILED.
-            logger.info("Restart request connection dropped (expected during self-restart)")
+            logger.info(
+                "Restart request connection dropped (expected during self-restart)"
+            )
             return JSONResponse({"success": True, "message": "Restart initiated"})
         except httpx.HTTPError as e:
             logger.exception("Failed to reach Supervisor for restart")
@@ -1182,16 +1184,24 @@ def register_settings_routes(
         mcp.custom_route("/", methods=["GET"])(handlers["root_page"])
         mcp.custom_route("/settings", methods=["GET"])(handlers["settings_page"])
         mcp.custom_route("/api/settings/tools", methods=["GET"])(handlers["get_tools"])
-        mcp.custom_route("/api/settings/tools", methods=["POST"])(handlers["save_tools"])
-        mcp.custom_route("/api/settings/restart", methods=["POST"])(handlers["restart_addon"])
-        mcp.custom_route("/api/settings/info", methods=["GET"])(handlers["settings_info"])
+        mcp.custom_route("/api/settings/tools", methods=["POST"])(
+            handlers["save_tools"]
+        )
+        mcp.custom_route("/api/settings/restart", methods=["POST"])(
+            handlers["restart_addon"]
+        )
+        mcp.custom_route("/api/settings/info", methods=["GET"])(
+            handlers["settings_info"]
+        )
 
     if secret_prefix:
         # Mount under the MCP secret path so Docker / standalone clients
         # need the same secret to reach the UI as they do for the MCP
         # endpoint. The frontend uses relative fetches (./api/settings/...)
         # so the JS works at either prefix unchanged.
-        mcp.custom_route(f"{secret_prefix}/settings", methods=["GET"])(handlers["settings_page"])
+        mcp.custom_route(f"{secret_prefix}/settings", methods=["GET"])(
+            handlers["settings_page"]
+        )
         mcp.custom_route(f"{secret_prefix}/api/settings/tools", methods=["GET"])(
             handlers["get_tools"]
         )

src/ha_mcp/stdio_settings_sidecar.py

@@ -185,7 +185,11 @@ def _spawn_lock() -> Iterator[bool]:
     try:
         fd = os.open(lock_path, os.O_RDWR | os.O_CREAT, 0o600)
     except OSError:
-        logger.debug("Cannot open spawn lock file %s; proceeding unlocked", lock_path, exc_info=True)
+        logger.debug(
+            "Cannot open spawn lock file %s; proceeding unlocked",
+            lock_path,
+            exc_info=True,
+        )
         yield True
         return
 
@@ -212,7 +216,11 @@ def _spawn_lock() -> Iterator[bool]:
                 yield False
                 return
             except OSError:
-                logger.debug("fcntl.flock failed on %s; proceeding unlocked", lock_path, exc_info=True)
+                logger.debug(
+                    "fcntl.flock failed on %s; proceeding unlocked",
+                    lock_path,
+                    exc_info=True,
+                )
                 yield True
                 return
             try:
@@ -274,9 +282,7 @@ def maybe_spawn() -> None:
         if _existing_sidecar_alive():
             url = read_sidecar_url()
             if url:
-                print(
-                    f"ha-mcp settings UI already running at: {url}", file=sys.stderr
-                )
+                print(f"ha-mcp settings UI already running at: {url}", file=sys.stderr)
             logger.info("Settings UI sidecar already running; skipping spawn.")
             return
 
@@ -472,9 +478,7 @@ async def dispatch(
                     host_header,
                     sorted(allowed_hosts),
                 )
-                return PlainTextResponse(
-                    "Host header not allowed", status_code=400
-                )
+                return PlainTextResponse("Host header not allowed", status_code=400)
             if request.method in mutating_methods:
                 origin = request.headers.get("origin")
                 if origin is not None and origin not in allowed_origins:
@@ -484,9 +488,7 @@ async def dispatch(
                         origin,
                         sorted(allowed_origins),
                     )
-                    return PlainTextResponse(
-                        "Origin not allowed", status_code=403
-                    )
+                    return PlainTextResponse("Origin not allowed", status_code=403)
             response = await call_next(request)
             response.headers.setdefault("X-Content-Type-Options", "nosniff")
             response.headers.setdefault("Referrer-Policy", "no-referrer")