feat(agent): add MCP support and improve toolchain representation

- Add isMcp flag to AgentTool for distinguishing MCP tools
- Update toolchain completion to use AgentTool instead of String
- Add MCP icon and update AutoDevIcons for MCP support
- Modify completion provider to show appropriate icon based on isMcp flag

Author: phodal

core/src/main/kotlin/cc/unitmesh/devti/AutoDevIcons.kt

@@ -76,4 +76,7 @@ object AutoDevIcons {
 
     @JvmField
     val RULE: Icon = IconLoader.getIcon("/icons/rule.svg", AutoDevIcons::class.java)
+
+    @JvmField
+    val MCP: Icon = IconLoader.getIcon("/icons/mcp.svg", AutoDevIcons::class.java)
 }

core/src/main/kotlin/cc/unitmesh/devti/agent/tool/AgentTool.kt

@@ -4,7 +4,11 @@ import cc.unitmesh.devti.agent.Tool
 import kotlinx.serialization.Serializable
 
 @Serializable
-data class AgentTool(override val name: String, override val description: String, val example: String): Tool {
+data class AgentTool(
+    override val name: String, override val description: String,
+    val example: String,
+    val isMcp: Boolean = false
+) : Tool {
     override fun toString(): String {
         val string = if (description.isEmpty()) "" else """desc: $description"""
         val example = if (example.isEmpty()) "" else """example:

core/src/main/kotlin/cc/unitmesh/devti/devin/dataprovider/BuiltinCommand.kt

@@ -177,14 +177,16 @@ enum class BuiltinCommand(
             return providerName
         }
 
-        suspend fun allToolchains(): List<String> {
+        suspend fun allToolchains(): List<AgentTool> {
             return ToolchainFunctionProvider.all().map {
                 val toolInfo: List<AgentTool> = it.toolInfos()
                 if (toolInfo.isNotEmpty()) {
-                    return@map toolInfo.map { it.name }
+                    return@map toolInfo
                 }
 
-                it.funcNames()
+                it.funcNames().map { funcName ->
+                    AgentTool(funcName, "", "")
+                }
             }.flatten()
         }
     }

core/src/main/kotlin/cc/unitmesh/devti/mcp/client/McpFunctionProvider.kt

@@ -23,7 +23,8 @@ class McpFunctionProvider : ToolchainFunctionProvider {
             AgentTool(
                 it.name,
                 it.description ?: "",
-                "Here is command and JSON schema\n/${it.name}\n```json\n$encodeToString\n```"
+                "Here is command and JSON schema\n/${it.name}\n```json\n$encodeToString\n```",
+                isMcp = true
             )
         }
     }

core/src/main/resources/icons/mcp.svg

@@ -1,8 +1,10 @@
 package cc.unitmesh.devti.language.completion.provider
 
 import cc.unitmesh.devti.AutoDevIcons
+import cc.unitmesh.devti.agent.tool.AgentTool
 import cc.unitmesh.devti.devin.dataprovider.BuiltinCommand
 import com.intellij.codeInsight.completion.*
+import com.intellij.codeInsight.lookup.LookupElement
 import com.intellij.codeInsight.lookup.LookupElementBuilder
 import com.intellij.util.ProcessingContext
 import kotlinx.coroutines.runBlocking
@@ -21,9 +23,13 @@ class ToolchainCommandCompletion : CompletionProvider<CompletionParameters>() {
         }
     }
 
-    private fun createCommandCompletionCandidate(it: String) =
-        PrioritizedLookupElement.withPriority(
-            LookupElementBuilder.create(it).withIcon(AutoDevIcons.TOOLCHAIN),
-            98.0
-        )
+    private fun createCommandCompletionCandidate(tool: AgentTool): LookupElement {
+        val icon = if (tool.isMcp) {
+            AutoDevIcons.MCP
+        } else {
+            AutoDevIcons.TOOLCHAIN
+        }
+
+        return PrioritizedLookupElement.withPriority(LookupElementBuilder.create(tool.name).withIcon(icon), 98.0)
+    }
 }