Add Codex JSON sessions and usage limits

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

@@ -137,10 +137,12 @@ fun SpawnScreen(
                     .getOrDefault(emptyList())
         }
         val current = setup?.providers?.firstOrNull { it.name == providerName }
-        // Only the Claude CLI has models, a working directory and permission modes; keying the
-        // extra fields on the kind rather than the provider name keeps a second Claude provider
+        // Coding CLIs take a working directory, model, permission mode and thinking level. Keying
+        // the extra fields on the kind rather than the provider name keeps a second installation
         // from needing anything here.
         val isClaude = current?.kind == "claude_cli"
+        val isCodex = current?.kind == "codex_cli"
+        val isCodingCli = isClaude || isCodex
         val isLlama = current?.kind == "llama_cpp"
 
         // The machine first, because it decides what can be run at all.
@@ -237,7 +239,7 @@ fun SpawnScreen(
             Spacer(Modifier.height(16.dp))
         }
 
-        if (isClaude) {
+        if (isCodingCli) {
             if (current.models.isNotEmpty()) {
                 Spacer(Modifier.height(16.dp))
                 ChipGroup(
@@ -307,7 +309,7 @@ fun SpawnScreen(
                                 // an intent about new sessions in general, so a spawn that then
                                 // fails must not also lose the choice. Non-fatal for the same
                                 // reason the fetch above is -- the session is what was asked for.
-                                if (isClaude) {
+                                if (isCodingCli) {
                                     runCatching { setDefaultEffort(settings, effort) }
                                 }
                                 spawnSession(
@@ -319,10 +321,11 @@ fun SpawnScreen(
                                     provider = chosen.name,
                                     title = title.trim(),
                                     model =
-                                        if (isLlama) modelKey else model.trim().takeIf { isClaude },
-                                    cwd = cwd.trim().takeIf { isClaude },
-                                    permissionMode = permissionMode.takeIf { isClaude },
-                                    effort = effort.takeIf { isClaude },
+                                        if (isLlama) modelKey
+                                        else model.trim().takeIf { isCodingCli },
+                                    cwd = cwd.trim().takeIf { isCodingCli },
+                                    permissionMode = permissionMode.takeIf { isCodingCli },
+                                    effort = effort.takeIf { isCodingCli },
                                     // Sent only when set, so blank means "whatever llama.cpp does
                                     // by default" rather than a zero.
                                     params =