fix(database): wrap placeholder in sql template for prepared favorite update

Drizzle's .set() expects a column-typed value or an SQL fragment, not a
bare Placeholder. The earlier prepared-statement refactor (313230ab)
passed sql.placeholder('position') directly, which compiled clean under
ts-jest's isolated-modules mode but failed the full type check during
nx build:

  TS2322: Type 'Placeholder<"position", any>' is not assignable to
          type 'number | SQL<unknown> | SQLiteColumn<...>'

Wrap the placeholder in sql<number>\`...\` so it resolves to SQL<number>
at compile time. Behavior at runtime is identical — the placeholder is
still bound at execute() time per chunk.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Entire-Checkpoint: 746d41da84ff

apps/electron-backend/src/app/database/operations/favorites.operations.ts

@@ -168,9 +168,11 @@ export async function reorderGlobalFavorites(
     let current = 0;
     const total = updates.length;
 
+    // Drizzle's .set() doesn't accept a bare Placeholder — wrap it in an
+    // sql template so the value resolves to SQL<number> at compile time.
     const updateFavoritePosition = db
         .update(schema.favorites)
-        .set({ position: sql.placeholder('position') })
+        .set({ position: sql<number>`${sql.placeholder('position')}` })
         .where(eq(schema.favorites.contentId, sql.placeholder('contentId')))
         .prepare();