Fix the import warning for allow-update { none; }; document CLI config paths

jarld import warned that zones with allow-update { none; } use dynamic
updates, though that turns them off (validation already allowed it).
docs/cli.md now gives the CLI configuration file's location on macOS and
Windows, not only ~/.config/jarl/config.yaml.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -15,6 +15,15 @@ All notable changes to Jarl are documented here. The format follows
   and prints the steps to install Jarl and adopt the configuration
   (docs/development.md).
 
+### Fixed
+
+- `jarld import` no longer warns that a zone with `allow-update { none; }`
+  uses dynamic updates (validation already allowed it).
+- docs/cli.md gives the CLI configuration file's location on macOS
+  (`~/Library/Application Support/jarl/config.yaml`) and Windows
+  (`%AppData%\jarl\config.yaml`). It was documented only as
+  `~/.config/jarl/config.yaml`.
+
 ## [0.1.0] - 2026-10-09
 
 The first version.