feat(gui): replace AI studio with product suite

app/db.py

@@ -299,6 +299,7 @@ CREATE TABLE IF NOT EXISTS image_studio_projects (
   target_main_count  INTEGER NOT NULL DEFAULT 9,
   target_detail_count INTEGER NOT NULL DEFAULT 12,
   draft_prompt       TEXT,
+  suite_settings_json TEXT NOT NULL DEFAULT '{}',
   status             TEXT NOT NULL DEFAULT 'active',
   created_at         TEXT NOT NULL,
   updated_at         TEXT NOT NULL,
@@ -478,6 +479,7 @@ def init_db(path=None, conn=None) -> None:
             _ensure_batch_delete_columns(database)
             _ensure_task_image_task_columns(database)
             _ensure_task_cover_reset_columns(database)
+            _ensure_image_studio_project_suite_columns(database)
             _ensure_image_studio_job_recovery_columns(database)
 
 
@@ -505,6 +507,18 @@ def _ensure_task_cover_reset_columns(database):
         database.execute("ALTER TABLE tasks ADD COLUMN cover_reset_at TEXT")
 
 
+def _ensure_image_studio_project_suite_columns(database):
+    columns = {
+        row["name"]
+        for row in database.execute("PRAGMA table_info(image_studio_projects)").fetchall()
+    }
+    if "suite_settings_json" not in columns:
+        database.execute(
+            "ALTER TABLE image_studio_projects "
+            "ADD COLUMN suite_settings_json TEXT NOT NULL DEFAULT '{}'"
+        )
+
+
 def _ensure_image_studio_job_recovery_columns(database):
     columns = {
         row["name"] for row in database.execute("PRAGMA table_info(image_studio_jobs)").fetchall()