Implement comprehensive character deletion process in UserCharacterWorker

- Add queries and logic to delete associated data when a character dies, including directors, relationships, child relations, knowledge, debtors prism, political offices, and election candidates.
- Enhance error handling to log issues during the deletion process.

src/usercharacterworker.h

@@ -369,6 +369,46 @@ private:
             OR mother_character_id = $1
     )";
 
+    // Queries zum Löschen von Character-Verknüpfungen beim Tod
+    static constexpr const char *QUERY_DELETE_DIRECTOR = R"(
+        DELETE FROM falukant_data.director
+        WHERE director_character_id = $1
+        RETURNING employer_user_id;
+    )";
+
+    static constexpr const char *QUERY_DELETE_RELATIONSHIP = R"(
+        DELETE FROM falukant_data.relationship
+        WHERE character1_id = $1
+           OR character2_id = $1;
+    )";
+
+    static constexpr const char *QUERY_DELETE_CHILD_RELATION = R"(
+        DELETE FROM falukant_data.child_relation
+        WHERE child_character_id = $1
+           OR father_character_id = $1
+           OR mother_character_id = $1;
+    )";
+
+    static constexpr const char *QUERY_DELETE_KNOWLEDGE = R"(
+        DELETE FROM falukant_data.knowledge
+        WHERE character_id = $1;
+    )";
+
+    static constexpr const char *QUERY_DELETE_DEBTORS_PRISM = R"(
+        DELETE FROM falukant_data.debtors_prism
+        WHERE character_id = $1;
+    )";
+
+    static constexpr const char *QUERY_DELETE_POLITICAL_OFFICE = R"(
+        DELETE FROM falukant_data.political_office
+        WHERE character_id = $1;
+    )";
+
+    static constexpr const char *QUERY_DELETE_ELECTION_CANDIDATE = R"(
+        DELETE FROM falukant_data.election_candidate
+        WHERE character_id = $1;
+    )";
+
 };
 
 #endif // USERCHARACTERWORKER_H