fix(tui): prefer codewhale settings path

docs/ACCESSIBILITY.md

@@ -46,7 +46,9 @@ The same toggles are reachable from the command palette:
 * `/settings set calm_mode on`
 * `/settings set status_indicator off`
 
-Settings written this way persist to `~/.config/deepseek/settings.toml`.
+Settings written this way persist to `~/.codewhale/settings.toml` on new
+installs, with legacy `~/.deepseek/settings.toml` and platform config-dir
+settings kept as compatibility fallbacks.
 The `NO_ANIMATIONS` env var still wins at startup if it's set, so
 unsetting the env var is the way to honor your saved choice.
 

docs/CONFIGURATION.md

@@ -497,7 +497,9 @@ round-trip intact.
 
 codewhale also stores user preferences in:
 
-- `~/.config/deepseek/settings.toml`
+- `~/.codewhale/settings.toml` on new installs
+- `~/.deepseek/settings.toml` or the legacy platform config-dir
+  `deepseek/settings.toml` when an existing settings file is present
 
 Notable settings include `auto_compact` (default `false`), which opts into
 replacement-style summarization before the active model limit. The trigger