PPR ACK and Bulk Logging start

backend/app/crud/crud_ppr.py

@@ -169,6 +169,36 @@ class CRUDPPR:
         
         return db_obj
 
+    def acknowledge_strip(
+        self,
+        db: Session,
+        ppr_id: int,
+        user: str = "system",
+        user_ip: str = "127.0.0.1"
+    ) -> Optional[PPRRecord]:
+        db_obj = self.get(db, ppr_id)
+        if not db_obj:
+            return None
+
+        if db_obj.acknowledged_dt:
+            return db_obj
+
+        db_obj.acknowledged_dt = datetime.utcnow()
+        db_obj.acknowledged_by = user
+        db.add(db_obj)
+        db.commit()
+        db.refresh(db_obj)
+
+        crud_journal.log_ppr_change(
+            db,
+            db_obj.id,
+            f"Paper strip acknowledged by {user}",
+            user,
+            user_ip
+        )
+
+        return db_obj
+
     def delete(self, db: Session, ppr_id: int, user: str = "system", user_ip: str = "127.0.0.1") -> Optional[PPRRecord]:
         db_obj = self.get(db, ppr_id)
         if db_obj:
@@ -190,4 +220,4 @@ class CRUDPPR:
         return db_obj
 
 
-ppr = CRUDPPR()
+ppr = CRUDPPR()