fixes

prisma/schema.prisma

@@ -112,17 +112,23 @@ model Project {
 }
 
 model Assembly {
-  id        String   @id @default(cuid())
-  projectId String
-  code      String
-  name      String
-  qty       Int      @default(1)
-  notes     String?
-  createdAt DateTime @default(now())
-  updatedAt DateTime @updatedAt
+  id            String   @id @default(cuid())
+  projectId     String
+  code          String
+  name          String
+  qty           Int      @default(1)
+  notes         String?
+  stepFileId    String?
+  drawingFileId String?
+  cutFileId     String?
+  createdAt     DateTime @default(now())
+  updatedAt     DateTime @updatedAt
 
-  project Project @relation(fields: [projectId], references: [id], onDelete: Cascade)
-  parts   Part[]
+  project     Project    @relation(fields: [projectId], references: [id], onDelete: Cascade)
+  parts       Part[]
+  stepFile    FileAsset? @relation("AssemblyStep", fields: [stepFileId], references: [id], onDelete: SetNull)
+  drawingFile FileAsset? @relation("AssemblyDrawing", fields: [drawingFileId], references: [id], onDelete: SetNull)
+  cutFile     FileAsset? @relation("AssemblyCut", fields: [cutFileId], references: [id], onDelete: SetNull)
 
   @@unique([projectId, code])
 }
@@ -165,13 +171,16 @@ model Operation {
   materialNotes   String?
   instructions    String?
   qcRequired      Boolean   @default(false)
-  status          String    @default("pending") // pending | in_progress | completed
+  status          String    @default("pending") // pending | in_progress | partial | completed
   qrToken         String    @unique
   claimedByUserId String?
   claimedAt       DateTime?
   completedAt     DateTime?
   plannedMinutes  Int?
   plannedUnits    Int?
+  /// Cumulative units recorded across every Start→Pause/Done cycle on this op.
+  /// Incremented whenever an operator hands in a non-zero `unitsProcessed`.
+  unitsCompleted  Int       @default(0)
   createdAt       DateTime  @default(now())
   updatedAt       DateTime  @updatedAt
 
@@ -286,11 +295,14 @@ model FileAsset {
   uploadedBy   String?
   uploadedAt   DateTime @default(now())
 
-  partStep      Part[]          @relation("PartStep")
-  partDrawing   Part[]          @relation("PartDrawing")
-  partCut       Part[]          @relation("PartCut")
-  partThumbnail Part[]          @relation("PartThumbnail")
-  poPdfs        PurchaseOrder[] @relation("PoPdf")
+  partStep        Part[]          @relation("PartStep")
+  partDrawing     Part[]          @relation("PartDrawing")
+  partCut         Part[]          @relation("PartCut")
+  partThumbnail   Part[]          @relation("PartThumbnail")
+  assemblyStep    Assembly[]      @relation("AssemblyStep")
+  assemblyDrawing Assembly[]      @relation("AssemblyDrawing")
+  assemblyCut     Assembly[]      @relation("AssemblyCut")
+  poPdfs          PurchaseOrder[] @relation("PoPdf")
 }
 
 model AuditLog {