feat(terminal): implement terminal runner service with enhanced functionality

- Create TerminalRunnerService class to manage terminal runner and widget creation
- Add functionality to initialize terminal runner and create terminal widget
- Implement support for shell startup options, including JAVA_HOME environment variable
- Provide fallback mechanism for terminal widget creation

Author: phodal

exts/ext-terminal/src/223/main/kotlin/cc/unitmesh/terminal/service/TerminalRunnerService.kt

@@ -0,0 +1,37 @@
+package cc.unitmesh.terminal.service
+
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.components.service
+import com.intellij.openapi.project.Project
+import com.intellij.terminal.JBTerminalWidget
+import com.pty4j.PtyProcess
+import org.jetbrains.plugins.terminal.AbstractTerminalRunner
+import org.jetbrains.plugins.terminal.LocalTerminalDirectRunner
+
+@Service(Service.Level.PROJECT)
+class TerminalRunnerService(private val project: Project) {
+    private var terminalRunner: AbstractTerminalRunner<PtyProcess>? = null
+
+    fun createTerminalRunner(): AbstractTerminalRunner<PtyProcess> {
+        if (terminalRunner == null) {
+            terminalRunner = LocalTerminalDirectRunner.createTerminalRunner(project)
+        }
+
+        return terminalRunner!!
+    }
+
+    fun createTerminalWidget(
+        parent: Disposable,
+        startingDirectory: String?,
+        deferSessionStartUntilUiShown: Boolean = true
+    ): JBTerminalWidget {
+        val terminalRunner = createTerminalRunner()
+        return terminalRunner.createTerminalWidget(parent, startingDirectory, deferSessionStartUntilUiShown)
+    }
+
+    companion object {
+        @JvmStatic
+        fun getInstance(project: Project): TerminalRunnerService = project.service()
+    }
+}

exts/ext-terminal/src/main/kotlin/cc/unitmesh/terminal/service/TerminalRunnerService.kt renamed to exts/ext-terminal/src/233/main/kotlin/cc/unitmesh/terminal/service/TerminalRunnerService.kt

@@ -0,0 +1,61 @@
+package cc.unitmesh.terminal.service
+
+import cc.unitmesh.devti.sketch.run.ProcessExecutor
+import com.intellij.openapi.Disposable
+import com.intellij.openapi.components.Service
+import com.intellij.openapi.components.service
+import com.intellij.openapi.project.Project
+import com.intellij.terminal.JBTerminalWidget
+import com.pty4j.PtyProcess
+import org.jetbrains.plugins.terminal.AbstractTerminalRunner
+import org.jetbrains.plugins.terminal.LocalTerminalDirectRunner
+import org.jetbrains.plugins.terminal.ShellStartupOptions
+
+@Service(Service.Level.PROJECT)
+class TerminalRunnerService(private val project: Project) {
+    private var terminalRunner: AbstractTerminalRunner<PtyProcess>? = null
+
+    fun createTerminalRunner(): AbstractTerminalRunner<PtyProcess> {
+        return terminalRunner ?: initializeTerminalRunner().also { terminalRunner = it }
+    }
+
+    fun initializeTerminalRunner(): AbstractTerminalRunner<PtyProcess> {
+        val runner = LocalTerminalDirectRunner.createTerminalRunner(project)
+
+        return runner
+    }
+
+    private fun createStartupOptions(): ShellStartupOptions? {
+        return ProcessExecutor.getJdkVersion(project)?.let { javaHomePath ->
+            val environmentVariables = mapOf("JAVA_HOME" to javaHomePath)
+            val startupOptions = ShellStartupOptions.Builder()
+                .envVariables(environmentVariables)
+                .build()
+
+            return@let startupOptions
+        }
+    }
+
+    fun createTerminalWidget(
+        parent: Disposable,
+        startingDirectory: String?,
+        deferSessionStartUntilUiShown: Boolean = true
+    ): JBTerminalWidget {
+        val terminalRunner = createTerminalRunner()
+
+        createStartupOptions()?.also {
+            val terminalWidget = terminalRunner.startShellTerminalWidget(parent, it, deferSessionStartUntilUiShown)
+            val jediTermWidget = JBTerminalWidget.asJediTermWidget(terminalWidget)
+            if (jediTermWidget != null) {
+                return jediTermWidget
+            }
+        }
+
+        return terminalRunner.createTerminalWidget(parent, startingDirectory, deferSessionStartUntilUiShown)
+    }
+
+    companion object {
+        @JvmStatic
+        fun getInstance(project: Project): TerminalRunnerService = project.service()
+    }
+}