docs(config): update config dir paths for macOS/Windows in en & zh

Reflect the new config directory locations (~/.config/termscp on macOS,
%USERPROFILE%\.termscp on Windows) across the English and Chinese docs,
and add a CLAUDE.md note to keep both translations in sync.

docs/en-US/configuration/configuration.md

@@ -9,8 +9,8 @@ To enter the configuration, press `<CTRL+C>` from the termscp home.
 termscp requires these paths to be accessible:
 
 - `$HOME/.config/termscp/` on Linux/BSD
-- `$HOME/Library/Application Support/termscp` on macOS
-- `FOLDERID_RoamingAppData\termscp\` on Windows
+- `$HOME/.config/termscp/` on macOS
+- `%USERPROFILE%\.termscp\` on Windows
 
 ## Parameters
 

docs/en-US/configuration/themes.md

@@ -52,12 +52,12 @@ are two quick fixes:
     ```
 
 2. Edit your theme by hand. If you use a custom theme, edit the file and add the
-   missing key. The theme is located at `$CONFIG_DIR/termscp/theme.toml`, where
+   missing key. The theme is located at `$CONFIG_DIR/theme.toml`, where
    `$CONFIG_DIR` is:
 
-    - FreeBSD/Linux: `$HOME/.config/`
-    - macOS: `$HOME/Library/Application Support`
-    - Windows: `%appdata%`
+    - FreeBSD/Linux: `$HOME/.config/termscp`
+    - macOS: `$HOME/.config/termscp`
+    - Windows: `%USERPROFILE%\.termscp`
 
     Missing keys are reported in the CHANGELOG under `BREAKING CHANGES` for the
     version you have just installed.

docs/en-US/usage/bookmarks.md

@@ -7,8 +7,8 @@ termscp lets you save your favourite hosts as bookmarks, which can then be loade
 Bookmarks are saved, when possible, in the configuration directory:
 
 - `$HOME/.config/termscp/` on Linux/BSD
-- `$HOME/Library/Application Support/termscp` on macOS
-- `FOLDERID_RoamingAppData\termscp\` on Windows
+- `$HOME/.config/termscp/` on macOS
+- `%USERPROFILE%\.termscp\` on Windows
 
 ## Saving passwords