docs: add MCP, plugin/LSP tool, and RAG notes

- notes/mcp-overview.md: MCP 协议概览,跟 tool use 的分层差异
- notes/mcp-client-internals.md: MCP client 内部实现(发现/连接/catalog)
- notes/plugin-tools.md: plugin tool 与 native/MCP 的对比
- notes/lsp-tools.md: LSP 协议科普 + OpenClaw LSP tool 包装
- notes/rag-overview.md: RAG 与向量化(向量只用来检索,prompt 用原文)
- notes/blog/mcp-101.md: 面向开发者的 MCP 科普,LSP 类比引入
- README 索引更新

.obsidian/core-plugins.json

@@ -27,5 +27,7 @@
   "file-recovery": true,
   "publish": false,
   "sync": true,
-  "webviewer": false
+  "webviewer": false,
+  "footnotes": false,
+  "bases": true
 }

.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "blog/function-call-101.md",
+                "file": "blog/mcp-101.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "function-call-101"
+              "title": "mcp-101"
             }
           }
         ]
@@ -142,13 +142,13 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "blog/function-call-101.md",
+                "file": "blog/mcp-101.md",
                 "followCursor": false,
                 "showSearch": false,
                 "searchQuery": ""
               },
               "icon": "lucide-list",
-              "title": "function-call-101 的大纲"
+              "title": "mcp-101 的大纲"
             }
           }
         ],
@@ -160,6 +160,7 @@
   },
   "left-ribbon": {
     "hiddenItems": {
+      "bases:新建数据库": false,
       "switcher:打开快速切换": false,
       "graph:查看关系图谱": false,
       "canvas:新建白板": false,
@@ -170,9 +171,16 @@
   },
   "active": "d0cf7351ba09fde6",
   "lastOpenFiles": [
-    "llm-autoregressive-kvcache.md",
+    "rag-overview.md",
+    "mcp-overview.md",
+    "mcp-client-internals.md",
+    "lsp-tools.md",
+    "blog/mcp-101.md",
+    "plugin-tools.md",
     "blog/function-call-101.md",
     "README.md",
+    "blog/README.md",
+    "llm-autoregressive-kvcache.md",
     "function-call-flow.md",
     "blog",
     "skills-management-design.md",