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/tencent/README.md

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+# 腾讯混元：来源导航
+
+[总索引](../../README.md) · [官网证据与边界](SOURCES.md)
+
+本目录包含 19 个单模型文件、3 个单接入面文件。核验日期与状态来自迁移前记录。
+
+## 接入面
+
+- [compute/providers/tencent.json](access/providers--tencent.md)
+- [compute/coding-plans/tencent-token.json](access/coding-plans--tencent-token.md)
+- [compute/model-specs/tencent.json](access/model-specs--tencent.md)
+
+## 模型
+
+- [`glm-5`](models/glm-5.md)
+- [`glm-5.1`](models/glm-5.1.md)
+- [`hunyuan-2.0-instruct`](models/hunyuan-2.0-instruct.md)
+- [`hunyuan-2.0-instruct-20251111`](models/hunyuan-2.0-instruct-20251111.md)
+- [`hunyuan-2.0-thinking`](models/hunyuan-2.0-thinking.md)
+- [`hunyuan-2.0-thinking-20251109`](models/hunyuan-2.0-thinking-20251109.md)
+- [`hunyuan-t1`](models/hunyuan-t1.md)
+- [`hunyuan-t1-latest`](models/hunyuan-t1-latest.md)
+- [`hunyuan-t1-vision`](models/hunyuan-t1-vision.md)
+- [`hunyuan-turbos`](models/hunyuan-turbos.md)
+- [`hunyuan-turbos-latest`](models/hunyuan-turbos-latest.md)
+- [`hunyuan-turbos-vision`](models/hunyuan-turbos-vision.md)
+- [`hy3`](models/hy3.md)
+- [`hy3-preview`](models/hy3-preview.md)
+- [`hy4-preview`](models/hy4-preview.md)
+- [`kimi-k2.5`](models/kimi-k2.5.md)
+- [`minimax-m2.5`](models/minimax-m2.5.md)
+- [`minimax-m2.7`](models/minimax-m2.7.md)
+- [`tc-code-latest`](models/tc-code-latest.md)