Add Codex JSON sessions and usage limits

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

@@ -150,7 +150,7 @@ data class SessionSummary(
      */
     val effort: String?,
     /**
-     * Whether a thinking level does anything here -- a Claude CLI session, not a llama or echo one.
+     * Whether a thinking level does anything here -- a coding CLI session, not llama or echo.
      *
      * Asked of the server rather than worked out from the provider's name, because this is a
      * property of the driver's *kind* and the phone only has the name.
@@ -1084,9 +1084,9 @@ fun setSessionModel(settings: ServerSettings, sessionId: String, model: String)
 }
 
 /**
- * The permission modes the Claude CLI accepts, in the order they give up asking. "manual" asks for
- * everything (each ask arrives on the phone as a question card); the others are the CLI's own
- * escalating levels of autonomy.
+ * Common permission intents, in the order they give up asking. Each coding CLI maps these onto its
+ * own flags: "manual" asks, "acceptEdits" and "auto" allow ordinary work, "bypassPermissions"
+ * accepts everything, and "plan" makes no changes.
  *
  * One list for every screen that offers them -- spawn, import, and the session's own picker --
  * because three copies had already drifted: the import screen was missing "plan".
@@ -1115,7 +1115,7 @@ fun setDefaultEffort(settings: ServerSettings, level: String?) {
 }
 
 /**
- * How hard the model thinks, as `claude --effort` takes them, cheapest first.
+ * How hard a coding model thinks, cheapest first.
  *
  * Not offered alongside the model and the permission mode on the session's own bar, because it does
  * not behave like them: the CLI has a control request for those two and none for this (checked

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 =