feat(GOV-010): 强制校验开发质量证据

tools/governance/start.mjs

@@ -3,7 +3,11 @@ import { existsSync, mkdirSync, writeFileSync } from 'node:fs';
 import path from 'node:path';
 
 import { assertCurrentReleasedBaselinePublished } from '../database/schema-baseline.mjs';
-import { getFeatureDirectory, validateFeatureId } from './feature-record.mjs';
+import {
+  buildImpactPlanTemplate,
+  getFeatureDirectory,
+  validateFeatureId,
+} from './feature-record.mjs';
 
 const [featureId, slug] = process.argv.slice(2);
 const repositoryRoot = process.cwd();
@@ -15,13 +19,15 @@ if (!featureId || !slug || !validateFeatureId(featureId)) {
 const featureDirectory = getFeatureDirectory(repositoryRoot, featureId, slug);
 const gitnexusDirectory = path.join(featureDirectory, 'gitnexus');
 const beforeReport = path.join(gitnexusDirectory, 'before.md');
+const impactPlan = path.join(gitnexusDirectory, 'impact-plan.md');
 
 // Schema 基线必须在新版本的功能档案和 GitNexus 分析之前已经独立提交；
 // 这里仅做只读验证，绝不在一般功能开发命令中连接数据库或静默生成历史产物。
 assertCurrentReleasedBaselinePublished(repositoryRoot);
 
-if (existsSync(beforeReport)) {
-  throw new Error(`开发前报告已存在，为保护历史不会覆盖：${beforeReport}`);
+const existingReports = [beforeReport, impactPlan].filter((file) => existsSync(file));
+if (existingReports.length > 0) {
+  throw new Error(`开发前报告已存在，为保护历史不会覆盖：${existingReports.join(', ')}`);
 }
 
 mkdirSync(gitnexusDirectory, { recursive: true });
@@ -64,5 +70,6 @@ writeFileSync(
     `\`gitnexus/impact-plan.md\`。高风险结果必须先获得用户确认。\n`,
   'utf8',
 );
+writeFileSync(impactPlan, buildImpactPlanTemplate(featureId), 'utf8');
 
-process.stdout.write(`已创建开发前基线：${beforeReport}\n`);
+process.stdout.write(`已创建开发前基线：${beforeReport}\n已创建影响计划：${impactPlan}\n`);