docs: 优化Java NIO文档图解,使用Excalidraw可视化

- 将ASCII文字图替换为专业的Excalidraw图表
- 新增4个可视化图表:三大核心组件架构、Selector多路复用模型、Buffer核心属性、零拷贝原理对比
- 图表使用配色方案区分不同组件(蓝色-Channel, 绿色-Buffer, 橙色-Selector)
- 在Obsidian中可通过![[...]]语法直接嵌入查看

.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "10-中间件/Netty核心原理.md",
+                "file": "10-中间件/Java NIO核心原理.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "Netty核心原理"
+              "title": "Java NIO核心原理"
             }
           }
         ]
@@ -94,7 +94,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "10-中间件/Netty核心原理.md",
+                "file": "10-中间件/Java NIO核心原理.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -104,7 +104,7 @@
                 "unlinkedCollapsed": true
               },
               "icon": "links-coming-in",
-              "title": "Netty核心原理 的反向链接列表"
+              "title": "Java NIO核心原理 的反向链接列表"
             }
           },
           {
@@ -113,12 +113,12 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "10-中间件/Netty核心原理.md",
+                "file": "10-中间件/Java NIO核心原理.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               },
               "icon": "links-going-out",
-              "title": "Netty核心原理 的出链列表"
+              "title": "Java NIO核心原理 的出链列表"
             }
           },
           {
@@ -156,13 +156,13 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "10-中间件/Netty核心原理.md",
+                "file": "10-中间件/Java NIO核心原理.md",
                 "followCursor": false,
                 "showSearch": false,
                 "searchQuery": ""
               },
               "icon": "lucide-list",
-              "title": "Netty核心原理 的大纲"
+              "title": "Java NIO核心原理 的大纲"
             }
           },
           {
@@ -198,16 +198,21 @@
   },
   "active": "fcbc762a80282002",
   "lastOpenFiles": [
-    "10-中间件/Buffer核心属性.excalidraw",
-    "10-中间件/Selector多路复用模型.excalidraw",
+    "10-中间件/零拷贝原理对比.md",
+    "10-中间件/Buffer核心属性.md",
     "10-中间件/Java NIO三大核心组件架构.excalidraw",
     "10-中间件/Java NIO核心原理.md",
+    "10-中间件/Java NIO三大核心组件架构.md",
+    "10-中间件/Selector多路复用模型.md",
+    "10-中间件/Buffer核心属性.excalidraw",
+    "10-中间件/零拷贝原理对比.excalidraw",
+    "10-中间件/Netty核心原理.md",
+    "10-中间件/Selector多路复用模型.excalidraw",
     "00-项目概述/项目概述.md",
     "questions/02-数据库/MyBatis核心原理.md",
     "Obsidian技能使用指南.md",
     "Obsidian可视化插件指南.md",
     "10-中间件/Netty实战场景.md",
-    "10-中间件/Netty核心原理.md",
     "10-中间件",
     "16-LeetCode Hot 100/从前序与中序遍历序列构造二叉树.md",
     "16-LeetCode Hot 100/路径总和.md",
@@ -224,15 +229,10 @@
     "16-LeetCode Hot 100/单词搜索.md",
     "16-LeetCode Hot 100/子集.md",
     "16-LeetCode Hot 100/最长回文子串.md",
-    "16-LeetCode Hot 100/括号生成.md",
-    "16-LeetCode Hot 100/删除链表的倒数第N个结点.md",
-    "16-LeetCode Hot 100/电话号码的字母组合.md",
     "16-LeetCode Hot 100",
     "00-项目概述",
     "questions/15-简历面试",
     "questions/14-Web3与区块链",
-    "12-面试技巧",
-    "08-算法与数据结构",
-    "questions/13-Golang语言"
+    "12-面试技巧"
   ]
 }