refactor: 重组项目文件结构

- 将项目概述文件移至根目录
- 将算法学习指南移至 questions 目录
- 将面试准备进度移至根目录
- 删除空的 questions 文件
- 更新 Obsidian 主题配置

.obsidian/appearance.json

@@ -1 +1,4 @@
-{}
+{
+  "theme": "obsidian",
+  "cssTheme": "Minimal"
+}

.obsidian/themes/Minimal/manifest.json

@@ -0,0 +1,8 @@
+{
+	"name": "Minimal",
+	"version": "8.1.6",
+	"minAppVersion": "1.9.0",
+	"author": "@kepano",
+	"authorUrl": "https://twitter.com/kepano",
+	"fundingUrl": "https://www.buymeacoffee.com/kepano"
+}

.obsidian/workspace.json

@@ -13,12 +13,12 @@
             "state": {
               "type": "markdown",
               "state": {
-                "file": "questions/elastic-search.md",
+                "file": "questions/01-分布式系统/分布式事务.md",
                 "mode": "source",
                 "source": false
               },
               "icon": "lucide-file",
-              "title": "elastic-search"
+              "title": "分布式事务"
             }
           }
         ]
@@ -94,7 +94,7 @@
             "state": {
               "type": "backlink",
               "state": {
-                "file": "questions/elastic-search.md",
+                "file": "questions/01-分布式系统/分布式事务.md",
                 "collapseAll": false,
                 "extraContext": false,
                 "sortOrder": "alphabetical",
@@ -104,7 +104,7 @@
                 "unlinkedCollapsed": true
               },
               "icon": "links-coming-in",
-              "title": "elastic-search 的反向链接列表"
+              "title": "分布式事务 的反向链接列表"
             }
           },
           {
@@ -113,12 +113,12 @@
             "state": {
               "type": "outgoing-link",
               "state": {
-                "file": "questions/elastic-search.md",
+                "file": "questions/01-分布式系统/分布式事务.md",
                 "linksCollapsed": false,
                 "unlinkedCollapsed": true
               },
               "icon": "links-going-out",
-              "title": "elastic-search 的出链列表"
+              "title": "分布式事务 的出链列表"
             }
           },
           {
@@ -156,13 +156,13 @@
             "state": {
               "type": "outline",
               "state": {
-                "file": "questions/elastic-search.md",
+                "file": "questions/01-分布式系统/分布式事务.md",
                 "followCursor": false,
                 "showSearch": false,
                 "searchQuery": ""
               },
               "icon": "lucide-list",
-              "title": "elastic-search 的大纲"
+              "title": "分布式事务 的大纲"
             }
           }
         ]
@@ -186,26 +186,27 @@
   },
   "active": "fcbc762a80282002",
   "lastOpenFiles": [
-    "12-面试技巧/面试准备进度.md",
+    "questions/01-分布式系统/分布式锁.md",
+    "questions/01-分布式系统/分布式事务.md",
+    "项目概述.md",
+    "questions/elastic-search.md",
+    "面试准备进度.md",
+    "questions/08-算法与数据结构/算法与数据结构学习指南.md",
+    "questions/linux-commands.md",
+    "questions/java-memory.md",
+    "questions/13-Golang语言/内存模型和垃圾回收.md",
+    "questions/13-Golang语言/反射和unsafe.md",
+    "questions/13-Golang语言/并发编程进阶.md",
     "12-面试技巧",
-    "00-项目概述/项目概述.md",
     "00-项目概述",
-    "08-算法与数据结构/算法与数据结构学习指南.md",
     "08-算法与数据结构",
     "questions/13-Golang语言/数据库操作.md",
     "questions/13-Golang语言/项目结构和工程化.md",
-    "questions/13-Golang语言/反射和unsafe.md",
     "questions/13-Golang语言/HTTP和Web开发.md",
     "questions/13-Golang语言/性能优化.md",
-    "questions/13-Golang语言/内存模型和垃圾回收.md",
-    "questions/13-Golang语言/并发编程进阶.md",
     "questions/13-Golang语言/错误处理和测试.md",
     "questions/13-Golang语言/Goroutine和并发模型.md",
     "questions/13-Golang语言/Golang基础语法.md",
-    "questions/java-memory.md",
-    "questions/linux-commands.md",
-    "questions/elastic-search.md",
-    "questions/01-分布式系统/分布式事务.md",
     "questions/13-Golang语言/go-reflect-unsafe.md",
     "questions/13-Golang语言/go-performance.md",
     "questions/13-Golang语言/go-database.md",
@@ -214,7 +215,6 @@
     "questions/13-Golang语言/go-goroutine.md",
     "questions/13-Golang语言/go-engineering.md",
     "questions/13-Golang语言/go-concurrent-advanced.md",
-    "questions/13-Golang语言/go-basic-syntax.md",
     "questions/13-Golang语言",
     "questions/12-面试技巧",
     "questions/11-运维",