Add multi-language support and new repository methods for book synchronization

- Extend repository methods to handle API requests for fetching books, chapters, characters, and other entities with multilingual support (`lang: 'fr' | 'en'`).
- Add `uploadBookForSync` logic to consolidate and decrypt book data for synchronization.
- Refactor schema migration logic to remove console logs and streamline table recreation.
- Enhance error handling across database repositories and IPC methods.

electron/database/schema.ts

@@ -483,7 +483,6 @@ function dropColumnIfExists(db: Database, tableName: string, columnName: string)
     if (columnExists(db, tableName, columnName)) {
         try {
             db.exec(`ALTER TABLE ${tableName} DROP COLUMN ${columnName}`);
-            console.log(`[Migration] Dropped column ${columnName} from ${tableName}`);
         } catch (e) {
             console.error(`[Migration] Failed to drop column ${columnName} from ${tableName}:`, e);
         }
@@ -502,7 +501,6 @@ function recreateTable(db: Database, tableName: string, newSchema: string, colum
         db.exec(`INSERT INTO ${tableName} (${columnsToKeep}) SELECT ${columnsToKeep} FROM ${tableName}_backup`);
         db.exec(`DROP TABLE ${tableName}_backup`);
         db.exec('PRAGMA foreign_keys = ON');
-        console.log(`[Migration] Recreated table ${tableName}`);
     } catch (e) {
         console.error(`[Migration] Failed to recreate table ${tableName}:`, e);
         db.exec('PRAGMA foreign_keys = ON');
@@ -519,12 +517,8 @@ export function runMigrations(db: Database): void {
         return;
     }
 
-    console.log(`[Migration] Upgrading schema from version ${currentVersion} to ${SCHEMA_VERSION}`);
-
     // Migration v2: Remove NOT NULL constraints to allow null values from server sync
     if (currentVersion < 2) {
-        console.log('[Migration] Running migration v2: Allowing NULL in certain columns...');
-
         // Recreate erit_books with nullable hashed_sub_title and summary
         recreateTable(db, 'erit_books', `
             CREATE TABLE erit_books (
@@ -578,11 +572,8 @@ export function runMigrations(db: Database): void {
                 FOREIGN KEY (plot_point_id) REFERENCES book_plot_points(plot_point_id) ON DELETE CASCADE
             )
         `, 'chapter_info_id, chapter_id, act_id, incident_id, plot_point_id, book_id, author_id, summary, goal, last_update');
-
-        console.log('[Migration] Migration v2 completed');
     }
 
     // Update schema version
     setDbSchemaVersion(db, SCHEMA_VERSION);
-    console.log(`[Migration] Schema updated to version ${SCHEMA_VERSION}`);
 }