style: ruff line-fold in client.py + update uv.lock to v0.3.6 (v0.3.7)

- client.py: collapse 3-line raise SynologyError(...) to one line
  (fits within 100 chars; ruff format output)
- uv.lock: package version entry updated from 0.2.4 to 0.3.6

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

uv.lock

@@ -362,7 +362,7 @@ wheels = [
 
 [[package]]
 name = "mcp-synology-filestation"
-version = "0.2.4"
+version = "0.3.6"
 source = { editable = "." }
 dependencies = [
     { name = "click" },