feat(P16C-1,P16C-3): 完成供应商主数据后端与种子

server/prisma/migrations/20260307093703_p16c_suppliers/migration.sql

@@ -0,0 +1,32 @@
+-- CreateTable
+CREATE TABLE "suppliers" (
+    "id" UUID NOT NULL,
+    "code" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "short_name" TEXT,
+    "tax_no" TEXT,
+    "contact_name" TEXT,
+    "contact_phone" TEXT,
+    "payment_terms" TEXT,
+    "legal_entity_id" UUID,
+    "enabled" BOOLEAN NOT NULL DEFAULT true,
+    "archived_at" TIMESTAMP(3),
+    "created_at" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "created_by" UUID,
+    "updated_at" TIMESTAMP(3) NOT NULL,
+    "updated_by" UUID,
+
+    CONSTRAINT "suppliers_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "suppliers_code_key" ON "suppliers"("code");
+
+-- CreateIndex
+CREATE INDEX "idx_suppliers_legal_entity_status" ON "suppliers"("legal_entity_id", "enabled", "archived_at");
+
+-- CreateIndex
+CREATE INDEX "idx_suppliers_name" ON "suppliers"("name");
+
+-- AddForeignKey
+ALTER TABLE "suppliers" ADD CONSTRAINT "suppliers_legal_entity_id_fkey" FOREIGN KEY ("legal_entity_id") REFERENCES "legal_entities"("id") ON DELETE SET NULL ON UPDATE CASCADE;

server/prisma/schema.prisma

@@ -409,6 +409,7 @@ model LegalEntity {
   cost_centers             CostCenter[]
   employees                Employee[]
   holiday_calendars        HolidayCalendar[] @relation("HolidayCalendarLegalEntity")
+  suppliers                Supplier[]
 
   @@index([enabled, archived_at], map: "idx_legal_entities_status")
   @@index([default_holiday_calendar_id], map: "idx_legal_entities_default_calendar")
@@ -505,6 +506,31 @@ model HolidayCalendarDay {
   @@map("holiday_calendar_days")
 }
 
+model Supplier {
+  id              String   @id @default(uuid()) @db.Uuid
+  code            String   @unique
+  name            String
+  short_name      String?
+  tax_no          String?
+  contact_name    String?
+  contact_phone   String?
+  payment_terms   String?
+  legal_entity_id String?  @db.Uuid
+  enabled         Boolean  @default(true)
+  archived_at     DateTime?
+
+  created_at DateTime @default(now())
+  created_by String?  @db.Uuid
+  updated_at DateTime @updatedAt
+  updated_by String?  @db.Uuid
+
+  legal_entity LegalEntity? @relation(fields: [legal_entity_id], references: [id], onDelete: SetNull)
+
+  @@index([legal_entity_id, enabled, archived_at], map: "idx_suppliers_legal_entity_status")
+  @@index([name], map: "idx_suppliers_name")
+  @@map("suppliers")
+}
+
 model ReimbursementForm {
   id                 String              @id @default(uuid()) @db.Uuid
   form_number        String?             @unique