Add character deletion functionality with confirmation workflow

- Added `handleDeleteCharacter` method to handle character deletion with confirmation prompts.
- Updated `CharacterComponent` and `CharacterDetail` to include delete button and related logic.
- Localized new strings for character deletion (e.g., confirmation prompts, success/error messages).
- Enhanced database repository methods (`deleteCharacter`) to handle character deletion securely.
- Improved synchronization workflows to accommodate character deletion.

lib/locales/en.json

@@ -425,6 +425,8 @@
     "errorUpdateCharacter": "Error updating character.",
     "errorAddAttribute": "Error adding attribute.",
     "errorRemoveAttribute": "Error removing attribute.",
+    "errorDeleteCharacter": "Error deleting character.",
+    "successDelete": "Character deleted successfully.",
     "enableTool": "Enable characters",
     "enableToolDescription": "Enable character management for this book.",
     "toolEnabled": "Character management enabled.",
@@ -447,7 +449,9 @@
     "historyPlaceholder": "Character history...",
     "roleFull": "Role",
     "roleFullPlaceholder": "Role of the character in the story",
-    "fetchAttributesError": "Error fetching attributes."
+    "fetchAttributesError": "Error fetching attributes.",
+    "deleteTitle": "Delete character",
+    "deleteMessage": "Are you sure you want to delete {name}? This action cannot be undone."
   },
   "characterList": {
     "search": "Search for a character...",
@@ -939,6 +943,7 @@
   "common": {
     "cancel": "Cancel",
     "confirm": "Confirm",
+    "delete": "Delete",
     "unknownError": "An unknown error occurred",
     "loading": "Loading..."
   },