chore(clean up): remove unused imports, unnecessary object impls, concurrency/coroutine issues, trailing commas, etc.

infrastructure/artifacts-cas/src/main/kotlin/com/correx/infrastructure/artifactscas/DefaultMaterializingArtifactWriter.kt

@@ -7,6 +7,7 @@ import com.correx.core.artifacts.kind.FileWrittenPayload
 import com.correx.infrastructure.artifactscas.segment.SegmentLayout
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
+import org.slf4j.Logger
 import org.slf4j.LoggerFactory
 import java.nio.file.Files
 import java.nio.file.Path
@@ -15,7 +16,7 @@ import java.nio.file.attribute.PosixFilePermissions
 class DefaultMaterializingArtifactWriter : MaterializingArtifactWriter {
 
     private companion object {
-        val log = LoggerFactory.getLogger(DefaultMaterializingArtifactWriter::class.java)
+        val log: Logger = LoggerFactory.getLogger(DefaultMaterializingArtifactWriter::class.java)
         const val DEFAULT_MODE = "644"
         const val OCTAL_RADIX = 8
         const val POSIX_PERMISSION_BITS = 9

infrastructure/artifacts-cas/src/main/kotlin/com/correx/infrastructure/artifactscas/recovery/TailScanner.kt

@@ -37,21 +37,23 @@ class TailScanner(
     private suspend fun scanAndRecover(activeId: Long, path: Path, startOffset: Long): TailScanReport {
         var recovered = 0
         var truncatedAt: Long? = null
-        RandomAccessFile(path.toFile(), "rw").use { raf ->
-            val fileLen = raf.length()
-            var pos = startOffset
-            while (pos < fileLen) {
-                val step = tryReadRecord(raf, pos, fileLen)
-                if (step == null) {
-                    truncatedAt = pos
-                    break
+        withContext(Dispatchers.IO) {
+            RandomAccessFile(path.toFile(), "rw").use { raf ->
+                val fileLen = raf.length()
+                var pos = startOffset
+                while (pos < fileLen) {
+                    val step = tryReadRecord(raf, pos, fileLen)
+                    if (step == null) {
+                        truncatedAt = pos
+                        break
+                    }
+                    index.insert(step.hash, Location(activeId, pos, step.length))
+                    recovered += 1
+                    pos += SegmentLayout.HEADER_SIZE + step.length
                 }
-                index.insert(step.hash, Location(activeId, pos, step.length))
-                recovered += 1
-                pos += SegmentLayout.HEADER_SIZE + step.length
+                // Truncate at first bad/partial record so writer resumes at a clean boundary.
+                truncatedAt?.let { raf.setLength(it) }
             }
-            // Truncate at first bad/partial record so writer resumes at a clean boundary.
-            truncatedAt?.let { raf.setLength(it) }
         }
         return TailScanReport(activeId, startOffset, recovered, truncatedAt)
     }