fix: replace Codex references with OpenCode in UI strings and errors

Author: jacobjmc

src-tauri/src/shared/codex_core.rs

@@ -59,7 +59,7 @@ async fn resolve_codex_home_for_workspace_core(
     let (entry, parent_entry) = resolve_workspace_and_parent(workspaces, workspace_id).await?;
     resolve_workspace_codex_home(&entry, parent_entry.as_ref())
         .or_else(resolve_default_codex_home)
-        .ok_or_else(|| "Unable to resolve CODEX_HOME".to_string())
+        .ok_or_else(|| "Unable to resolve OpenCode config directory".to_string())
 }
 
 fn should_include_hidden_sessions(sort_key: &Option<String>) -> bool {

src-tauri/src/shared/prompts_core.rs

@@ -323,7 +323,7 @@ pub(crate) async fn prompts_global_dir_core(
     let workspaces = workspaces.lock().await;
     let entry = require_workspace_entry(&workspaces, &workspace_id)?;
     let dir = default_prompts_dir_for_workspace(&workspaces, &entry)
-        .ok_or("Unable to resolve CODEX_HOME".to_string())?;
+        .ok_or("Unable to resolve OpenCode config directory".to_string())?;
     fs::create_dir_all(&dir).map_err(|err| err.to_string())?;
     Ok(dir.to_string_lossy().to_string())
 }
@@ -349,7 +349,7 @@ pub(crate) async fn prompts_create_core(
             }
             "global" => {
                 let dir = default_prompts_dir_for_workspace(&workspaces, &entry)
-                    .ok_or("Unable to resolve CODEX_HOME".to_string())?;
+                    .ok_or("Unable to resolve OpenCode config directory".to_string())?;
                 (dir, "global")
             }
             _ => return Err("Invalid scope.".to_string()),

src/features/models/hooks/useModels.ts

@@ -16,7 +16,7 @@ type UseModelsOptions = {
   selectionKey?: string | null;
 };
 
-const CONFIG_MODEL_DESCRIPTION = "Configured in CODEX_HOME/config.toml";
+const CONFIG_MODEL_DESCRIPTION = "Configured in ~/.config/opencode/opencode.json";
 
 const findModelByIdOrModel = (
   models: ModelOption[],

src/features/prompts/components/PromptPanel.tsx

@@ -579,11 +579,11 @@ export function PromptPanel({
                       className="prompt-empty-link"
                       onClick={() => void onRevealGeneralPrompts()}
                     >
-                      CODEX_HOME/prompts
+                      ~/.config/opencode/prompts
                     </button>
                   ) : (
                     <span className="prompt-empty-link is-disabled">
-                      CODEX_HOME/prompts
+                      ~/.config/opencode/prompts
                     </span>
                   )}
                   .

src/features/settings/components/sections/SettingsFeaturesSection.tsx

@@ -24,7 +24,7 @@ export function SettingsFeaturesSection({
       </div>
       {hasCodexHomeOverrides && (
         <div className="settings-help">
-          Feature settings are stored in the default CODEX_HOME config.toml.
+          Feature settings are stored in the global ~/.config/opencode/opencode.json.
           <br />
           Workspace overrides are not updated.
         </div>
@@ -33,7 +33,7 @@ export function SettingsFeaturesSection({
         <div>
           <div className="settings-toggle-title">Config file</div>
           <div className="settings-toggle-subtitle">
-            Open the Codex config in {fileManagerName()}.
+            Open the OpenCode config in {fileManagerName()}.
           </div>
         </div>
         <button type="button" className="ghost" onClick={onOpenConfig}>
@@ -49,8 +49,8 @@ export function SettingsFeaturesSection({
         <div>
           <div className="settings-toggle-title">Personality</div>
           <div className="settings-toggle-subtitle">
-            Choose Codex communication style (writes top-level <code>personality</code> in
-            config.toml).
+            Choose OpenCode communication style (writes top-level <code>personality</code> in
+            opencode.json).
           </div>
         </div>
         <select
@@ -98,7 +98,7 @@ export function SettingsFeaturesSection({
         <div>
           <div className="settings-toggle-title">Multi-agent</div>
           <div className="settings-toggle-subtitle">
-            Enable multi-agent collaboration tools in Codex.
+            Enable multi-agent collaboration tools in OpenCode.
           </div>
         </div>
         <button