refactor: 重构文档结构和文件位置

docs: 添加Redis集成测试文档
docs: 添加ID生成器分析报告
docs: 添加自由布局和固定布局示例文档
test: 添加ID生成器单元测试
fix: 删除重复的前端文档文件

docs/test/branch-sync-create.json

@@ -0,0 +1,22 @@
+{
+  "name": "branch-sync",
+  "code": "branch_sync_1",
+  "design_json": {
+    "name": "branch-sync",
+    "executionMode": "sync",
+    "nodes": [
+      { "id": "A", "type": "http", "data": { "title": "A-GET-x", "api": { "method": "GET", "url": "https://httpbin.org/get?x=hello" } } },
+      { "id": "COND", "type": "condition", "data": { "title": "COND", "conditions": [
+        { "key": "yes", "value": { "left": { "type": "constant", "content": true }, "operator": "is_true" } },
+        { "key": "no",  "value": { "left": { "type": "constant", "content": false }, "operator": "is_true" } }
+      ] } },
+      { "id": "B", "type": "http", "data": { "title": "B-UUID", "api": { "method": "GET", "url": "https://httpbin.org/uuid" } } },
+      { "id": "C", "type": "http", "data": { "title": "C-Delay1s", "api": { "method": "GET", "url": "https://httpbin.org/delay/1" } } }
+    ],
+    "edges": [
+      { "sourceNodeID": "A", "targetNodeID": "COND" },
+      { "sourceNodeID": "COND", "targetNodeID": "B", "sourcePortID": "yes" },
+      { "sourceNodeID": "COND", "targetNodeID": "C", "sourcePortID": "no" }
+    ]
+  }
+}