feat: add code graph feature with interactive visualization

- Implemented CodeGraphView component for visualizing project file structure using Sigma.js.
- Added NodeSearchBox for searching nodes within the graph.
- Created API module to fetch file data from backend.
- Developed graph building logic to construct a tree structure from file data.
- Integrated new routes and updated route tree to include the code graph page.
- Updated Vite configuration to load environment variables and changed server port.
- Added example data for testing the code graph functionality.

src/modules/project-api.ts

@@ -34,6 +34,14 @@ const api = {
             "optional": true
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -57,6 +65,14 @@ const api = {
             "description": "要移除的项目根目录绝对路径，必填"
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -80,6 +96,14 @@ const api = {
             "description": "要暂停监听的项目根目录绝对路径，必填"
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -103,6 +127,14 @@ const api = {
             "description": "要查询的项目根目录绝对路径，必填"
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -115,6 +147,14 @@ const api = {
       "key": "list",
       "description": "列出所有已注册的项目及其当前运行状态（路径、仓库名称、监听是否活跃等）",
       "metadata": {
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -183,6 +223,14 @@ const api = {
             "optional": true
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -195,6 +243,7 @@ const api = {
      * @param data - Request parameters
      * @param data.q - {string} 搜索关键词，选填；留空或不传则返回全部文件
      * @param data.projectPath - {string} 按项目根目录路径过滤，仅返回该项目下的文件，选填
+     * @param data.filepath - {string} 按文件绝对路径过滤，选填
      * @param data.repo - {string} 按代码仓库标识过滤（如 owner/repo），选填
      * @param data.title - {string} 按人工标注的标题字段过滤，选填
      * @param data.tags - {array} 按人工标注的标签列表过滤，选填
@@ -223,6 +272,12 @@ const api = {
             "type": "string",
             "optional": true
           },
+          "filepath": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "description": "按文件绝对路径过滤，选填",
+            "type": "string",
+            "optional": true
+          },
           "repo": {
             "$schema": "https://json-schema.org/draft/2020-12/schema",
             "description": "按代码仓库标识过滤（如 owner/repo），选填",
@@ -284,6 +339,14 @@ const api = {
             "optional": true
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -309,6 +372,52 @@ const api = {
             "description": "要读取的文件绝对路径，必填"
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
+        "url": "/root/v1/cnb-dev",
+        "source": "query-proxy-api"
+      }
+    },
+    /**
+     * 将 base64 编码的内容写入指定文件路径，用于更新或创建文件
+     *
+     * @param data - Request parameters
+     * @param data.filepath - {string (minLength: 1)} 要写入的文件绝对路径，必填
+     * @param data.content - {string (minLength: 1)} 文件内容的 base64 编码，必填
+     */
+    "update-content": {
+      "path": "project-file",
+      "key": "update-content",
+      "description": "将 base64 编码的内容写入指定文件路径，用于更新或创建文件",
+      "metadata": {
+        "args": {
+          "filepath": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "type": "string",
+            "minLength": 1,
+            "description": "要写入的文件绝对路径，必填"
+          },
+          "content": {
+            "$schema": "https://json-schema.org/draft/2020-12/schema",
+            "type": "string",
+            "minLength": 1,
+            "description": "文件内容的 base64 编码，必填"
+          }
+        },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -370,6 +479,14 @@ const api = {
             "optional": true
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }
@@ -393,6 +510,14 @@ const api = {
             "description": "要删除的文件绝对路径，必填"
           }
         },
+        "viewItem": {
+          "api": {
+            "url": "/root/v1/cnb-dev"
+          },
+          "type": "api",
+          "title": "CNB_BOARD",
+          "routerStatus": "active"
+        },
         "url": "/root/v1/cnb-dev",
         "source": "query-proxy-api"
       }