Rename setups and add provider reauthentication

app/androidApp/src/main/kotlin/com/example/aiapp/FilesScreen.kt

@@ -44,13 +44,13 @@ import kotlinx.coroutines.withContext
 /**
  * Which machine's files to show, and where to start.
  *
- * A **setup**, not a session: a filesystem is a property of a machine, and a session only says
- * where it was working. That is what makes a second way in -- from the setups tab -- one more
+ * A **machine**, not a session: a filesystem is a property of a machine, and a session only says
+ * where it was working. That is what makes a second way in -- from the machines tab -- one more
  * caller rather than any new code here.
  */
 data class FilesTarget(
-    val setup: String,
-    val setupName: String,
+    val machine: String,
+    val machineName: String,
     val start: String,
     /** A document to open immediately; [start] remains the fallback directory. */
     val file: String? = null,
@@ -59,8 +59,8 @@ data class FilesTarget(
 /** The explorer target for this session's machine, optionally opened on [file]. */
 fun SessionSummary.filesTarget(file: String? = null) =
     FilesTarget(
-        setup = setup,
-        setupName = setupName,
+        machine = machine,
+        machineName = machineName,
         start = cwd?.takeIf { it.isNotBlank() } ?: "~",
         file = file,
     )
@@ -131,7 +131,7 @@ fun FilesScreen(settings: ServerSettings, target: FilesTarget, onClose: () -> Un
         listings[path] =
             try {
                 withContext(Dispatchers.IO) {
-                    LoadState.Loaded(fetchDir(settings, target.setup, path))
+                    LoadState.Loaded(fetchDir(settings, target.machine, path))
                 }
             } catch (e: ApiException) {
                 LoadState.failed(e)
@@ -162,7 +162,7 @@ fun FilesScreen(settings: ServerSettings, target: FilesTarget, onClose: () -> Un
     // A file link can open without visiting the project first, but Back still needs to know where
     // the project is. Home is likewise resolved by the machine rather than guessed on the phone;
     // it is what lets every path beneath it be displayed with `~`, including over ssh.
-    LaunchedEffect(target.setup, target.start) {
+    LaunchedEffect(target.machine, target.start) {
         if (target.file != null) load(target.start, again = false)
         if (target.start != "~") load("~", again = false)
     }
@@ -187,7 +187,7 @@ fun FilesScreen(settings: ServerSettings, target: FilesTarget, onClose: () -> Un
                     FilesHeader(
                         title = baseName(shownAt),
                         path = shownAt,
-                        machine = target.setupName,
+                        machine = target.machineName,
                         onBack = { leave(UnsavedDestination.Session) },
                     ) {
                         GlyphButton(
@@ -241,7 +241,7 @@ fun FilesScreen(settings: ServerSettings, target: FilesTarget, onClose: () -> Un
     if (creating && dir != null && listing != null) {
         CreateDialog(
             settings = settings,
-            setup = target.setup,
+            machine = target.machine,
             directory = listing.path,
             onDismiss = { creating = false },
             onCreated = { path, isDirectory ->
@@ -444,7 +444,7 @@ private fun ColumnScope.DocPane(
         state = LoadState.Loading
         state =
             try {
-                val got = withContext(Dispatchers.IO) { fetchFile(settings, target.setup, path) }
+                val got = withContext(Dispatchers.IO) { fetchFile(settings, target.machine, path) }
                 if (got is FileContent.Text) draft = TextFieldValue(got.content)
                 LoadState.Loaded(got)
             } catch (e: ApiException) {
@@ -467,7 +467,7 @@ private fun ColumnScope.DocPane(
             try {
                 val written =
                     withContext(Dispatchers.IO) {
-                        writeFile(settings, target.setup, path, draft.text, against)
+                        writeFile(settings, target.machine, path, draft.text, against)
                     }
                 state =
                     LoadState.Loaded(
@@ -496,7 +496,7 @@ private fun ColumnScope.DocPane(
     FilesHeader(
         title = name,
         path = tildePath(path, homeDirectory),
-        machine = target.setupName,
+        machine = target.machineName,
         onBack = onBack,
     ) {
         if (editing) {
@@ -595,7 +595,9 @@ private fun ColumnScope.DocPane(
                 scope.launch {
                     val fresh =
                         try {
-                            withContext(Dispatchers.IO) { fetchFile(settings, target.setup, path) }
+                            withContext(Dispatchers.IO) {
+                                fetchFile(settings, target.machine, path)
+                            }
                         } catch (e: ApiException) {
                             saveError = e.message
                             conflict = null
@@ -639,7 +641,7 @@ private fun Note(text: String) {
 @Composable
 private fun CreateDialog(
     settings: ServerSettings,
-    setup: String,
+    machine: String,
     directory: String,
     onDismiss: () -> Unit,
     onCreated: (String, Boolean) -> Unit,
@@ -659,8 +661,8 @@ private fun CreateDialog(
         scope.launch {
             try {
                 withContext(Dispatchers.IO) {
-                    if (isDirectory) createDir(settings, setup, path)
-                    else createFile(settings, setup, path)
+                    if (isDirectory) createDir(settings, machine, path)
+                    else createFile(settings, machine, path)
                 }
                 onCreated(path, isDirectory)
             } catch (e: ApiException) {