feat: 增加公开业务 Agent 目录 (#108)

## 摘要

新增 7 个公开、可复用的 listing-only Agent 条目：

- 内容营销 Agent
- 标书协作 Agent
- 合同审查 Agent
- 工程图校核 Agent
- 检验报告 Agent
- 研究证据 Agent
- 流程运营 Agent

这些条目用于发现和展示能力蓝图，不声明已安装、已连接外部系统或可替代专业人员签发。工程、检验、法律和研究类条目均保留人工复核边界。

## Summary

Add seven public, reusable, listing-only Agent entries for content
marketing, tender collaboration, contract review, engineering drawing
review, inspection reports, research evidence, and workflow operations.

The entries are discovery blueprints only. They do not claim installed
tools, connected systems, or authority to replace qualified professional
review and sign-off.

## 数据变更 / Data changes

- Market version: `1.3.0`
- Agent count: `1 → 8`
- Every Agent includes bilingual legacy metadata and `CatalogItemV1`
sidecar data
- All new entries remain `listing-only` with unknown license/platform
facts where evidence is absent

## 验证 / Validation

- i18n unit tests: 9/9
- catalog validator tests: 29/29
- collection generator tests: 4/4
- catalog validation: 0 errors
- i18n validation: 0 errors
- secret/private-key scan: 0 findings

agents/contract-review-agent/agent.json

@@ -0,0 +1,33 @@
+{
+  "id": "contract-review-agent",
+  "name": "Contract Review Agent",
+  "avatar": { "t": "审", "bg": "linear-gradient(135deg, #7C3AED, #4F46E5)" },
+  "category": "business",
+  "version": "1.0.0",
+  "updatedAt": "2026-09-01",
+  "maintainer": { "name": "DesireCore Official", "verified": true },
+  "i18n": {
+    "default_locale": "en-US",
+    "source_locale": "zh-CN",
+    "locales": ["zh-CN", "en-US"],
+    "zh-CN": {
+      "name": "合同审查 Agent",
+      "shortDesc": "对照企业规则和模板检查合同条款，给出带原文定位的风险清单",
+      "fullDesc": "它会逐条读取合同，识别缺失项、责任不对等、付款与交付风险，并把每条意见定位到原文。企业可以加入自己的审查规则、标准模板和审批阈值。\n\n输出用于法务和业务人员复核，不构成法律意见，也不会替代有资质的专业判断。",
+      "tags": ["合同审查", "风险识别", "合规", "法务协作"],
+      "persona": { "role": "合同审查协作 Agent", "traits": ["逐条引用原文", "区分事实与建议", "不越权签发", "保留审查记录"] },
+      "translated_by": "human"
+    },
+    "en-US": {
+      "name": "Contract Review Agent",
+      "shortDesc": "Checks contract clauses against company rules and templates, producing a risk list linked to the original text.",
+      "fullDesc": "It reads a contract clause by clause, flags missing terms, unbalanced obligations, payment concerns, and delivery risks, and links each comment to the source text. Organizations can add their own review rules, standard templates, and approval thresholds.\n\nThe output supports legal and business review. It is not legal advice and does not replace qualified professional judgment.",
+      "tags": ["contract review", "risk", "compliance", "legal collaboration"],
+      "persona": { "role": "Contract review collaborator", "traits": ["quotes the source clause", "separates facts from suggestions", "does not sign off", "keeps review records"] },
+      "translated_by": "ai:openai",
+      "translated_at": "2026-09-01"
+    }
+  },
+  "persona": { "tools": [] },
+  "changelog": [{ "version": "1.0.0", "date": "2026-09-01", "changes": { "zh-CN": ["首次发布"], "en-US": ["Initial listing"] } }]
+}

agents/contract-review-agent/catalog-metadata.v1.json

@@ -0,0 +1,21 @@
+{
+  "$schema": "../../schemas/catalog-metadata.v1.schema.json",
+  "schemaVersion": 1,
+  "identity": { "kind": "agent", "id": "contract-review-agent" },
+  "presentation": {
+    "defaultLocale": "en-US",
+    "i18n": {
+      "zh-CN": { "name": "合同审查 Agent", "summary": "对照企业规则和模板检查合同条款，给出带原文定位的风险清单", "description": "它会逐条读取合同，识别缺失项、责任不对等、付款与交付风险，并把每条意见定位到原文。企业可以加入自己的审查规则、标准模板和审批阈值。\n\n输出用于法务和业务人员复核，不构成法律意见，也不会替代有资质的专业判断。" },
+      "en-US": { "name": "Contract Review Agent", "summary": "Checks contract clauses against company rules and templates, producing a risk list linked to the original text.", "description": "It reads a contract clause by clause, flags missing terms, unbalanced obligations, payment concerns, and delivery risks, and links each comment to the source text. Organizations can add their own review rules, standard templates, and approval thresholds.\n\nThe output supports legal and business review. It is not legal advice and does not replace qualified professional judgment." }
+    },
+    "category": "business",
+    "tags": ["contract-review", "risk", "compliance", "legal-collaboration"],
+    "icon": { "kind": "letter", "value": "审" }
+  },
+  "release": { "state": "known", "version": "1.0.0", "versionScheme": "semver" },
+  "timestamps": { "catalogUpdatedAt": { "state": "known", "value": "2026-09-01", "precision": "day" }, "releasePublishedAt": { "state": "unknown" }, "reviewedAt": { "state": "unknown" }, "upstreamObservedAt": { "state": "unknown" } },
+  "provenance": {},
+  "governance": { "stewardship": "official", "availability": "listing-only", "license": { "state": "unknown" }, "redistribution": "verify-package-terms", "listingMaintainer": { "name": "DesireCore Official", "verified": true } },
+  "compatibility": { "platforms": { "state": "unknown" } },
+  "spec": { "kind": "agent", "persona": { "role": "Contract review collaborator", "traits": ["quotes the source clause", "separates facts from suggestions", "does not sign off", "keeps review records"] } }
+}