refactor(prompt-builder): locale-dispatch every section for zh/en parity

Split each prompt section into parallel .en.md/.zh.md bundles (sops, api-docs,
ceo-modes, department-guidelines) and mirrored messages/{operating,system}-{en,zh}.ts
modules for the inline identity/culture/rules text that had stayed as hard-coded
English template literals. Every loader now resolves a locale via a single
shared helper so CEO and IC prompts come out fully Chinese when locale=zh and
fully English otherwise, removing the need for the trailing "请记住：全程使用中文"
language reminder.

src/main/prompt-builder/api-docs/agents.zh.md

@@ -0,0 +1,37 @@
+### 提出招聘
+POST /api/companies/{{companyId}}/agents
+Body: {
+  "name": "新人显示名（不得单纯复述 role/title）",
+  "role": "role_title",
+  "title": "描述性 title",
+  "department": "engineering|product|marketing|sales|hr|finance|legal|operations|customer_support|research|design|executive",
+  "reportsTo": "{managerAgentId —— 他/她向谁汇报}",
+  "connectorId": "{{connectorIds}}",
+  "workspaceId": "{可选 workspaceId}",
+  "model": "model-identifier",
+  "capabilities": "此招聘应拥有并能做什么的详细描述",
+  "budgetMonthlyUsd": 250
+}
+此调用创建 pending_approval 状态的 agent。Board（人类操作员）必须批准。
+批准后 agent 变为活跃，可分配工作。
+
+### 唤醒另一个 Agent
+POST /api/agents/{agentId}/wake
+Body: { "reason": "唤醒原因简述" }
+需要另一个 agent 立即行动时使用，会触发其下一次心跳。
+
+### 列出所有 Agent
+GET /api/companies/{{companyId}}/agents
+
+### 获取 Agent 详情
+GET /api/agents/{agentId}
+返回 agent 资料、管理者信息和直接下属。
+
+### 列出公司目标
+GET /api/companies/{{companyId}}/goals
+
+### 列出公司项目
+GET /api/companies/{{companyId}}/projects
+
+### 获取你的绩效指标
+GET /api/agents/me/metrics