Update dependency management and installation instructions in README files

Refactor optional dependencies in pyproject.toml to consolidate the Maximal recipe into a single 'full' option, which includes all integrations. Update installation instructions in both English and Chinese README files to reflect this change, simplifying the installation process for users. Adjust example code to remove async patterns for synchronous execution.

Author: Evenss

README.md

@@ -13,15 +13,11 @@ Agents need one mental model for "files": one URI scheme, one tool surface, one
 ## Install
 
 ```bash
+# Minimal — core only, no database required
 pip install seekvfs
 
-# optional extras — required by the Maximal recipe
-pip install asyncmy                 # OceanBase connection pool
-pip install "seekvfs[anthropic]"    # ClaudeSummarizer
-pip install "seekvfs[openai]"       # OpenAIEmbedder
-pip install "seekvfs[langgraph]"    # .to_langgraph()
-pip install "seekvfs[mcp]"          # .to_mcp()
-pip install "seekvfs[otel]"         # OpenTelemetry spans
+# Full — Maximal recipe + all LangChain providers + all integrations
+pip install "seekvfs[full]"
 ```
 
 ## Pick a recipe
@@ -36,19 +32,15 @@ Recipes are NOT part of the protocol — they live under `seekvfs_recipes.*` so
 ## 30-second quickstart
 
 ```python
-import asyncio
 from seekvfs import VFS
 from seekvfs_recipes.minimal import FileBackend
 
-async def main():
-    vfs = VFS(routes={
-        "seekvfs://notes/": {"backend": FileBackend("/data/agent_notes")},
-    })
-    await vfs.write("seekvfs://notes/hello.md", "hello world")
-    fd = await vfs.read("seekvfs://notes/hello.md")
-    print(fd.content)   # b'hello world'
-
-asyncio.run(main())
+vfs = VFS(routes={
+    "seekvfs://notes/": {"backend": FileBackend("/data/agent_notes")},
+})
+vfs.write("seekvfs://notes/hello.md", "hello world")
+fd = vfs.read("seekvfs://notes/hello.md")
+print(fd.content)   # b'hello world'
 ```
 
 > Prefix names are yours to choose — the protocol does not recommend any naming convention.

README.zh-CN.md

@@ -13,15 +13,11 @@ Agent 需要一套统一的"文件"心智模型:一个 URI scheme、一套工具
 ## 安装
 
 ```bash
+# 最小安装 —— 仅核心，无需数据库
 pip install seekvfs
 
-# 可选依赖 —— Maximal recipe 需要用到
-pip install asyncmy                 # OceanBase 连接池
-pip install "seekvfs[anthropic]"    # ClaudeSummarizer
-pip install "seekvfs[openai]"       # OpenAIEmbedder
-pip install "seekvfs[langgraph]"    # .to_langgraph()
-pip install "seekvfs[mcp]"          # .to_mcp()
-pip install "seekvfs[otel]"         # OpenTelemetry spans
+# 全量安装 —— Maximal recipe + 全部 LangChain provider + 全部集成
+pip install "seekvfs[full]"
 ```
 
 ## 挑一个 recipe
@@ -36,19 +32,15 @@ Recipe **不属于协议**,放在 `seekvfs_recipes.*` 下,和 `seekvfs` 核心
 ## 30 秒快速上手
 
 ```python
-import asyncio
 from seekvfs import VFS
 from seekvfs_recipes.minimal import FileBackend
 
-async def main():
-    vfs = VFS(routes={
-        "seekvfs://notes/": {"backend": FileBackend("/data/agent_notes")},
-    })
-    await vfs.write("seekvfs://notes/hello.md", "hello world")
-    fd = await vfs.read("seekvfs://notes/hello.md")
-    print(fd.content)   # b'hello world'
-
-asyncio.run(main())
+vfs = VFS(routes={
+    "seekvfs://notes/": {"backend": FileBackend("/data/agent_notes")},
+})
+vfs.write("seekvfs://notes/hello.md", "hello world")
+fd = vfs.read("seekvfs://notes/hello.md")
+print(fd.content)   # b'hello world'
 ```
 
 > 前缀命名由你决定 —— 协议不给出任何命名建议。

pyproject.toml

@@ -25,31 +25,18 @@ dependencies = [
 ]
 
 [project.optional-dependencies]
-# ── Minimal recipe ────────────────────────────────────────────────────────────
-# (no extra deps; uses only stdlib + anyio)
-
-# ── Maximal recipe ────────────────────────────────────────────────────────────
-# Core maximal deps: OceanBase sync driver (pyobvector) + LangChain base interfaces
-maximal = ["pyobvector>=0.2.6", "langchain-core>=0.3"]
-
-# LangChain provider extras — install whichever you use:
-langchain-openai    = ["langchain-openai>=0.3"]        # ChatOpenAI / OpenAIEmbeddings
-langchain-anthropic = ["langchain-anthropic>=0.3"]     # ChatAnthropic
-langchain-community = ["langchain-community>=0.3"]     # ChatTongyi / DashScopeEmbeddings (Qwen)
-
-# Convenience bundle: maximal + all first-party LangChain providers
-maximal-full = [
+# Full — Maximal recipe (OceanBase + all LangChain providers) + all integrations
+full = [
     "pyobvector>=0.2.6",
     "langchain-core>=0.3",
     "langchain-openai>=0.3",
     "langchain-anthropic>=0.3",
     "langchain-community>=0.3",
+    "langgraph>=0.2",
+    "mcp",
+    "opentelemetry-api>=1.20",
+    "opentelemetry-sdk>=1.20",
 ]
-
-# ── Other integrations ────────────────────────────────────────────────────────
-langgraph = ["langgraph>=0.2", "langchain-core>=0.3"]
-mcp = ["mcp"]
-otel = ["opentelemetry-api>=1.20", "opentelemetry-sdk>=1.20"]
 dev = [
     "pytest>=7.4",
     "pytest-asyncio>=0.23",