docs: split model source records and unify project instructions (#113)

* docs: split model sources and consolidate project instructions

* docs: normalize empty model navigation footer

docs/model-sources/providers/volcengine/access/providers--volcengine.md

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+# 火山引擎：volcengine 接入面
+
+[供应商索引](../README.md) · [官网证据](../SOURCES.md)
+
+- 配置文件：[compute/providers/volcengine.json](../../../../../compute/providers/volcengine.json)
+- 核验日期：2026-10-03。
+- 接入类别：`providers`。
+
+## 平台配置快照
+
+- API 协议：`openai-completions`。
+- 端点：`https://ark.cn-beijing.volces.com/api/v3`。
+- 计价币种：`CNY`。
+- 访问模式：`普通 API`。
+
+以上是配置快照，不能据此宣布该端点或账号已实际验收。核查地域、套餐支持、凭据来源及协议时，对照官网证据目录并记录结论。
+
+<!-- source-config: compute/providers/volcengine.json -->
+<!-- source-config-fingerprint: 39994a8a21672ddaf8da1a02ea806b9281be0b7b2c8c02c70e24c565a4e68257 -->
+
+## 关联模型
+
+- [`doubao-seed-evolving`](../models/doubao-seed-evolving.md)
+- [`doubao-seed-2.1-pro`](../models/doubao-seed-2.1-pro.md)
+- [`doubao-seed-2.1-turbo`](../models/doubao-seed-2.1-turbo.md)
+- [`doubao-seed-2.0-pro`](../models/doubao-seed-2.0-pro.md)
+- [`doubao-seed-2.0-lite`](../models/doubao-seed-2.0-lite.md)
+- [`doubao-seed-2.0-mini`](../models/doubao-seed-2.0-mini.md)
+- [`doubao-seed-2.0-code`](../models/doubao-seed-2.0-code.md)
+- [`doubao-seed-1.8`](../models/doubao-seed-1.8.md)
+- [`doubao-seed-1.6`](../models/doubao-seed-1.6.md)
+- [`doubao-seed-1.6-thinking`](../models/doubao-seed-1.6-thinking.md)
+- [`doubao-seed-1.6-flash`](../models/doubao-seed-1.6-flash.md)
+- [`doubao-seed-1.6-lite`](../models/doubao-seed-1.6-lite.md)
+- [`doubao-seed-1.6-vision`](../models/doubao-seed-1.6-vision.md)
+- [`doubao-seed-code`](../models/doubao-seed-code.md)
+- [`deepseek-v3.2`](../models/deepseek-v3.2.md)
+- [`deepseek-r1`](../models/deepseek-r1.md)
+- [`doubao-embedding`](../models/doubao-embedding.md)
+- [`doubao-embedding-large`](../models/doubao-embedding-large.md)
+- [`volc-mega-tts-clone`](../models/volc-mega-tts-clone.md)
+- [`volc-realtime-voice`](../models/volc-realtime-voice.md)
+- [`volc-simultaneous`](../models/volc-simultaneous.md)
+- [`volc-translation`](../models/volc-translation.md)
+- [`doubao-seedream-4-0-250828`](../models/doubao-seedream-4-0-250828.md)
+- [`doubao-seedance-2-0-260128`](../models/doubao-seedance-2-0-260128.md)
+
+## 更新前检查
+
+- 核对端点和地域、API 格式、凭据来源、版本要求及套餐实际支持名单。
+- 修改平台字段后复核本文件；修改模型字段后更新对应单模型文件。
+- 未取得官网参数或账号实测证据时，保留 pending / 未实测说明，不以表格快照代替证据。
+
+<!-- source-metadata:start -->
+```json
+{
+  "formatVersion": 1,
+  "supplier": "volcengine",
+  "checkedAt": "2026-10-03",
+  "sourceCatalog": "../SOURCES.md"
+}
+```
+<!-- source-metadata:end -->