🎉 init: 小龙的工作空间

.benchmark/project-mgmt/backend/src/services/approval.ts

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+// Auto-generated Approval service
+import { queryAll, queryOne, execute } from "../db/client.js";
+import type { Approval, CreateApprovalInput, UpdateApprovalInput } from "../types/index.js";
+
+export class ApprovalService {
+  /** List all approvals */
+  list(): Approval[] {
+    return queryAll<Approval>("SELECT * FROM approvals ORDER BY created_at DESC");
+  }
+
+  /** Get by ID */
+  getById(id: string): Approval | undefined {
+    return queryOne<Approval>("SELECT * FROM approvals WHERE id = ?", [id]);
+  }
+
+  /** Create */
+  create(input: CreateApprovalInput): Approval {
+    const id = crypto.randomUUID();
+    const now = new Date().toISOString();
+    const cols = ["id", "user_id", "entity_type", "entity_id", "applicant_id", "status", "form_data", "created_at", "updated_at"];
+    const values = [id, input.userId ?? null, input.entityType ?? null, input.entityId ?? null, input.applicantId ?? null, input.status ?? null, input.formData ?? null, now, now];
+
+    execute(`INSERT INTO approvals (${cols.join(", ")}) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)`, values);
+    return this.getById(id)!;
+  }
+
+  /** Update */
+  update(id: string, input: UpdateApprovalInput): Approval | undefined {
+    const existing = this.getById(id);
+    if (!existing) return undefined;
+
+    const sets: string[] = [];
+    const values: unknown[] = [];
+    if (input.userId !== undefined) { sets.push("user_id = ?"); values.push(input.userId); }
+    if (input.entityType !== undefined) { sets.push("entity_type = ?"); values.push(input.entityType); }
+    if (input.entityId !== undefined) { sets.push("entity_id = ?"); values.push(input.entityId); }
+    if (input.applicantId !== undefined) { sets.push("applicant_id = ?"); values.push(input.applicantId); }
+    if (input.status !== undefined) { sets.push("status = ?"); values.push(input.status); }
+    if (input.formData !== undefined) { sets.push("form_data = ?"); values.push(input.formData); }
+
+    if (sets.length === 0) return existing;
+
+    sets.push("updated_at = ?");
+    values.push(new Date().toISOString());
+
+    values.push(id);
+    execute(`UPDATE approvals SET ${sets.join(", ")} WHERE id = ?`, values);
+    return this.getById(id)!;
+  }
+
+  /** Delete */
+  delete(id: string): boolean {
+    const result = execute("DELETE FROM approvals WHERE id = ?", [id]);
+    return result.changes > 0;
+  }
+}