✨ infra: add unified packagejson and restore proper dependencies (#23)

* ✨ infra: add com.soobak.algo.search package and update import method to use Git path parameters

* 🔧 infra: remove cross-package dependencies to fix UPM import issues

* 🔧 infra: fix UniTask dependency format to use SemVer version

* ✨ infra: add unified package.json and restore proper dependencies for UPM compatibility

Author: soo-bak

README.md

@@ -18,8 +18,12 @@ Reusable Unity 6 algorithm pipeline. `com.soobak.algo.core` defines execution pr
 3. Consumers either pass an `ISortingAlgorithm` directly or call `ExecuteAsync("quick-sort", state, token)`.
 4. Each step broadcasts a cloned `SortingState` and a `SortOp` event so visualizers receive immutable snapshots.
 
-## Usage
-1. Add Git UPM dependencies using path parameters.
+1. Add the complete package from Git URL:
+   ```
+   https://github.com/soo-bak/soobak-algo-core.git
+   ```
+
+2. Or add individual packages using path parameters:
    ```json
    {
      "dependencies": {

package.json

@@ -0,0 +1,27 @@
+{
+  "name": "com.soobak.algo",
+  "displayName": "Soobak Algorithm Packages",
+  "description": "Complete algorithm visualization package including core, sorting, and search modules.",
+  "version": "0.1.0",
+  "unity": "6000.0",
+  "author": {
+    "name": "Soobak",
+    "email": "contact@soobakwalkway.com"
+  },
+  "keywords": [
+    "algorithm",
+    "sorting",
+    "search",
+    "visualization"
+  ],
+  "dependencies": {
+    "com.cysharp.unitask": "https://github.com/Cysharp/UniTask.git?path=src/UniTask/Assets/Plugins/UniTask#2.5.3"
+  },
+  "samples": [
+    {
+      "path": "Packages/com.soobak.algo.sorting/Samples~/SortingVisualizerDemo",
+      "description": "Cube-based visualizer that runs SortingRunner against algorithms from the catalog.",
+      "displayName": "Sorting Visualizer Demo"
+    }
+  ]
+}