feat(storage): add Milvus vector adapter

docs/en/guides/01-configuration.md

@@ -1209,7 +1209,7 @@ Vector database storage configuration
 
 | Parameter | Type | Description | Default |
 |-----------|------|-------------|---------|
-| `backend` | str | VectorDB backend type: 'local' (file-based), 'http' (remote service), 'volcengine' (cloud VikingDB), 'vikingdb' (private deployment), 'cuvs' (local storage + GPU dense search), 'qdrant', or 'opengauss' | "local" |
+| `backend` | str | VectorDB backend type: 'local' (file-based), 'http' (remote service), 'volcengine' (cloud VikingDB), 'vikingdb' (private deployment), 'cuvs' (local storage + GPU dense search), 'qdrant', 'milvus', or 'opengauss' | "local" |
 | `name` | str | VectorDB collection name | "context" |
 | `url` | str | Remote service URL for 'http' type (e.g., 'http://localhost:5000') | null |
 | `project_name` | str | Project name (alias project) | "default" |
@@ -1220,6 +1220,7 @@ Vector database storage configuration
 | `vikingdb` | object | 'vikingdb' type private deployment configuration | - |
 | `cuvs` | object | NVIDIA cuVS configuration for the 'cuvs' backend and the opt-in memory-aware auto mode on 'local'; see the [cuVS guide](./16-cuvs.md) | - |
 | `qdrant` | object | 'qdrant' type Qdrant configuration | - |
+| `milvus` | object | 'milvus' type Milvus or Zilliz Cloud configuration | - |
 | `opengauss` | object | 'opengauss' native vector backend configuration | - |
 
 Default local mode
@@ -1254,6 +1255,37 @@ Supports cloud-deployed VikingDB on Volcengine
 ```
 </details>
 
+<details>
+<summary><b>Milvus</b></summary>
+
+Install the `milvus` optional extra before using this backend. The default `uri`
+uses Milvus Lite and stores data in a local `milvus.db` file. Use an HTTP URI for
+self-hosted Milvus, or a cloud endpoint plus `token` for Zilliz Cloud.
+
+```json
+{
+  "storage": {
+    "vectordb": {
+      "name": "context",
+      "backend": "milvus",
+      "project": "default",
+      "distance_metric": "cosine",
+      "dimension": 1024,
+      "milvus": {
+        "uri": "./milvus.db",
+        "token": null,
+        "db_name": null,
+        "consistency_level": "Session"
+      }
+    }
+  }
+}
+```
+
+For a self-hosted server, set `"uri": "http://localhost:19530"`. For Zilliz Cloud,
+set `"uri"` to the cloud endpoint and provide `"token"`.
+</details>
+
 <details>
 <summary><b>openGauss</b></summary>
 

docs/zh/guides/01-configuration.md

@@ -1181,7 +1181,7 @@ RAGFS 默认使用 Rust binding 模式，通过 Rust 实现直接访问文件系
 
 | 参数 | 类型 | 说明 | 默认值 |
 |------|------|------|--------|
-| `backend` | str | VectorDB 后端类型: 'local'（基于文件）, 'http'（远程服务）, 'volcengine'（云上 VikingDB）, 'vikingdb'（私有部署）, 'cuvs'（本地存储 + GPU dense search）, 'qdrant' 或 'opengauss' | "local" |
+| `backend` | str | VectorDB 后端类型: 'local'（基于文件）, 'http'（远程服务）, 'volcengine'（云上 VikingDB）, 'vikingdb'（私有部署）, 'cuvs'（本地存储 + GPU dense search）, 'qdrant'、'milvus' 或 'opengauss' | "local" |
 | `name` | str | VectorDB 的集合名称 | "context" |
 | `url` | str | 'http' 类型的远程服务 URL（例如 'http://localhost:5000'） | null |
 | `project_name` | str | 项目名称（别名 project） | "default" |
@@ -1192,6 +1192,7 @@ RAGFS 默认使用 Rust binding 模式，通过 Rust 实现直接访问文件系
 | `vikingdb` | object | 'vikingdb' 类型的私有部署配置 | - |
 | `cuvs` | object | NVIDIA cuVS 配置，也用于在 'local' 下显式开启显存感知自动模式，参见 [cuVS 使用指南](./16-cuvs.md) | - |
 | `qdrant` | object | 'qdrant' 类型的 Qdrant 配置 | - |
+| `milvus` | object | 'milvus' 类型的 Milvus 或 Zilliz Cloud 配置 | - |
 | `opengauss` | object | 'opengauss' 原生向量后端配置 | - |
 
 默认使用本地模式
@@ -1226,6 +1227,37 @@ RAGFS 默认使用 Rust binding 模式，通过 Rust 实现直接访问文件系
 ```
 </details>
 
+<details>
+<summary><b>Milvus</b></summary>
+
+使用该后端前需要安装 `milvus` 可选依赖。默认 `uri` 使用 Milvus Lite，
+并把数据写入本地 `milvus.db` 文件。自托管 Milvus 使用 HTTP URI；
+Zilliz Cloud 使用云端 endpoint 并配置 `token`。
+
+```json
+{
+  "storage": {
+    "vectordb": {
+      "name": "context",
+      "backend": "milvus",
+      "project": "default",
+      "distance_metric": "cosine",
+      "dimension": 1024,
+      "milvus": {
+        "uri": "./milvus.db",
+        "token": null,
+        "db_name": null,
+        "consistency_level": "Session"
+      }
+    }
+  }
+}
+```
+
+如果连接自托管服务，可设置 `"uri": "http://localhost:19530"`。如果使用
+Zilliz Cloud，把 `"uri"` 设置为云端 endpoint，并填写 `"token"`。
+</details>
+
 <details>
 <summary><b>openGauss</b></summary>
 

openviking/storage/vectordb_adapters/README.md

@@ -146,6 +146,32 @@
 1. `backend`: 填写 Adapter 类的完整 Python 路径（例如 `my_project.adapters.MyAdapter`）。
 2. `custom_params`: 这是一个字典，你可以放入任何自定义参数，Adapter 的 `from_config` 方法可以通过 `config.custom_params` 获取这些值。
 
+内置 Milvus 后端可直接使用 registry 名称，并通过 `milvus` 配置块传递连接信息：
+
+```json
+{
+  "storage": {
+    "vectordb": {
+      "backend": "milvus",
+      "name": "context",
+      "project": "default",
+      "distance_metric": "cosine",
+      "dimension": 1024,
+      "milvus": {
+        "uri": "./milvus.db",
+        "token": null,
+        "db_name": null,
+        "consistency_level": "Session"
+      }
+    }
+  }
+}
+```
+
+`uri` 默认为 Milvus Lite 本地文件；也可以设置为自建 Milvus 服务
+（如 `http://localhost:19530`）或 Zilliz Cloud endpoint，认证统一使用
+`token` 字段。
+
 
 
 ---
@@ -238,4 +264,4 @@ class ThirdPartyCollectionAdapter(CollectionAdapter):
 - `backend=thirdparty` 可正常初始化。
 - create 后可完成 upsert/get/query/delete/count 全流程。
 - 不改上层业务调用方式即可参与 `find/search` 检索链路。
-- 后端差异全部封装在 adapter 层。
+- 后端差异全部封装在 adapter 层。

openviking/storage/vectordb_adapters/__init__.py

@@ -6,6 +6,7 @@
 from .factory import create_collection_adapter
 from .http_adapter import HttpCollectionAdapter
 from .local_adapter import CuVSCollectionAdapter, LocalCollectionAdapter
+from .milvus_adapter import MilvusCollectionAdapter
 from .opengauss_adapter import OpenGaussCollectionAdapter
 from .qdrant_adapter import QdrantCollectionAdapter
 from .vikingdb_private_adapter import VikingDBPrivateCollectionAdapter
@@ -16,6 +17,7 @@
     "LocalCollectionAdapter",
     "CuVSCollectionAdapter",
     "HttpCollectionAdapter",
+    "MilvusCollectionAdapter",
     "OpenGaussCollectionAdapter",
     "QdrantCollectionAdapter",
     "VolcengineCollectionAdapter",

openviking/storage/vectordb_adapters/factory.py

@@ -9,6 +9,7 @@
 from .base import CollectionAdapter
 from .http_adapter import HttpCollectionAdapter
 from .local_adapter import CuVSCollectionAdapter, LocalCollectionAdapter
+from .milvus_adapter import MilvusCollectionAdapter
 from .opengauss_adapter import OpenGaussCollectionAdapter
 from .qdrant_adapter import QdrantCollectionAdapter
 from .vikingdb_private_adapter import VikingDBPrivateCollectionAdapter
@@ -18,6 +19,7 @@
     "local": LocalCollectionAdapter,
     "cuvs": CuVSCollectionAdapter,
     "http": HttpCollectionAdapter,
+    "milvus": MilvusCollectionAdapter,
     "opengauss": OpenGaussCollectionAdapter,
     "qdrant": QdrantCollectionAdapter,
     "volcengine": VolcengineCollectionAdapter,