feat(provider): add HarmonyOS chat context provider

Add a new `HarmonyOSChatContextProvider` implementation to provide chat context items specific to HarmonyOS projects. The provider checks if the IDE platform prefix is "DevEcoStudio" and if so, returns a single chat context item indicating that the project is a HarmonyOS project.

The implementation is added as an extension point in the plugin XML configuration file under the `<extensions>` section.

Author: phodal

exts/ext-harmonyos/src/main/kotlin/cc/unitmesh/harmonyos/provider/HarmonyOSChatContextProvider.kt

@@ -0,0 +1,16 @@
+package cc.unitmesh.harmonyos.provider
+
+import cc.unitmesh.devti.provider.context.ChatContextItem
+import cc.unitmesh.devti.provider.context.ChatContextProvider
+import cc.unitmesh.devti.provider.context.ChatCreationContext
+import com.intellij.openapi.project.Project
+
+class HarmonyOSChatContextProvider : ChatContextProvider {
+    override fun isApplicable(project: Project, creationContext: ChatCreationContext): Boolean {
+        return System.getProperty("idea.platform.prefix", "idea") == "DevEcoStudio"
+    }
+
+    override suspend fun collect(project: Project, creationContext: ChatCreationContext): List<ChatContextItem> {
+        return listOf(ChatContextItem(HarmonyOSChatContextProvider::class, "This project is a HarmonyOS project."))
+    }
+}

exts/ext-harmonyos/src/main/resources/cc.unitmesh.harmonyos.xml

@@ -5,5 +5,7 @@
             <bundleName>messages.AutoDevBundle</bundleName>
             <categoryKey>intention.category.llm</categoryKey>
         </autoDevIntention>
+
+        <chatContextProvider implementation="cc.unitmesh.harmonyos.provider.HarmonyOSChatContextProvider"/>
     </extensions>
 </idea-plugin>