refactor: 按 sample_in_harmonyos 多层模块化架构重构工程结构

- 新增 common/ 公共模块：模型、服务、组件、常量
- 新增 features/ 功能模块：graph(星图)、chat(聊天)、settings(设置)、commonbusiness
- 新增 products/phone 产品入口层：EntryAbility + Index + MainPage
- Index.ets 简化为纯路由入口，TabNavigation 移至 MainPage 统一管理
- 更新 build-profile.json5 注册所有新模块
- 迁移原始 entry/ 代码到分层架构，保持功能完整

build-profile.json5

@@ -24,13 +24,87 @@
     ]
   },
   "modules": [
+    {
+      "name": "common",
+      "srcPath": "./common",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "commonbusiness",
+      "srcPath": "./features/commonbusiness",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "graph",
+      "srcPath": "./features/graph",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "chat",
+      "srcPath": "./features/chat",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "settings",
+      "srcPath": "./features/settings",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
+    {
+      "name": "phone",
+      "srcPath": "./products/phone",
+      "targets": [
+        {
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
+        }
+      ]
+    },
     {
       "name": "entry",
       "srcPath": "./entry",
       "targets": [
         {
           "name": "default",
-          "applyToProducts": ["default"]
+          "applyToProducts": [
+            "default"
+          ]
         }
       ]
     },
@@ -39,7 +113,10 @@
       "srcPath": "./trulymem-core",
       "targets": [
         {
-          "name": "default"
+          "name": "default",
+          "applyToProducts": [
+            "default"
+          ]
         }
       ]
     }