Add CiCommand.kt, CiConfig.kt, and CiRunner.kt for CI daemon implementation

src/main/kotlin/commands/ci/CiCommand.kt

@@ -0,0 +1,57 @@
+package de.steamwar.commands.ci
+
+import com.github.ajalt.clikt.core.CliktCommand
+import com.github.ajalt.clikt.core.Context
+import java.io.File
+import java.io.PrintStream
+import kotlin.concurrent.thread
+
+class CiCommand : CliktCommand("ci") {
+    override val hiddenFromHelp = true
+
+    override fun help(context: Context): String = "CI daemon for processing git push events"
+
+    override fun run() {
+        echo("SteamWar CI daemon started. Waiting for push events...")
+        echo("Format: <oldref> <newref> <branch>")
+
+        try {
+            while (true) {
+                val input = readlnOrNull() ?: break
+                val parts = input.split(" ")
+
+                if (parts.size < 3) {
+                    echo("Invalid input format. Expected: <oldref> <newref> <branch>", err = true)
+                    continue
+                }
+
+                val (oldref, newref, branch) = parts
+
+                // Fork/detach the build process
+                thread(isDaemon = false) {
+                    processBuild(oldref, newref, branch)
+                }
+            }
+        } catch (e: Exception) {
+            echo("CI daemon error: ${e.message}", err = true)
+        }
+    }
+
+    private fun processBuild(oldref: String, newref: String, branch: String) {
+        try {
+            val config = CiConfig(oldref, newref, branch)
+
+            // Create log file
+            val logFile = File(config.logpath)
+            logFile.parentFile?.mkdirs()
+
+            PrintStream(logFile).use { logStream ->
+                val runner = CiRunner(config)
+                runner.run(logStream)
+            }
+        } catch (e: Exception) {
+            System.err.println("Build failed: ${e.message}")
+            e.printStackTrace()
+        }
+    }
+}