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/tender-collaboration-agent/agent.json

@@ -0,0 +1,33 @@
+{
+  "id": "tender-collaboration-agent",
+  "name": "Tender Collaboration Agent",
+  "avatar": { "t": "标", "bg": "linear-gradient(135deg, #2563EB, #06B6D4)" },
+  "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": "标书协作 Agent",
+      "shortDesc": "拆解招标要求、建立应答台账，协助分章撰写和交付前复核",
+      "fullDesc": "读取招标文件后，它会整理资格条件、评分项、应答要求和待补材料，形成可追踪的应答台账。团队可以按章节分工撰写，再由它检查遗漏、前后矛盾和材料引用。\n\n它适合帮助项目团队组织工作，不替代投标负责人对商务承诺、报价和最终文件的确认。",
+      "tags": ["招投标", "标书写作", "材料台账", "协作"],
+      "persona": { "role": "标书协作 Agent", "traits": ["逐条拆解要求", "引用有出处", "关注遗漏", "服从最终审核"] },
+      "translated_by": "human"
+    },
+    "en-US": {
+      "name": "Tender Collaboration Agent",
+      "shortDesc": "Breaks down tender requirements, maintains a response ledger, and assists with section drafting and final checks.",
+      "fullDesc": "After reading a tender package, it organizes eligibility conditions, scoring items, response requirements, and missing materials into a traceable ledger. Teams can draft sections in parallel and use the Agent to check omissions, contradictions, and source references.\n\nIt helps a bid team organize the work. Commercial commitments, pricing, and the final submission remain with the responsible people.",
+      "tags": ["tender", "proposal writing", "response ledger", "collaboration"],
+      "persona": { "role": "Tender collaboration agent", "traits": ["checks every requirement", "keeps source references", "looks for omissions", "defers to final review"] },
+      "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"] } }]
+}