feat(models): discover OpenAI-compatible provider models

_docs/config/opencode-compatibility.mdx

@@ -36,6 +36,7 @@ Blank cells mean that runtime behavior is not supported by that project today. `
 | `agent.<name>.model` / `temperature` / `top_p` | ✅ | partial | Subagent `model` overrides are applied for Task/`@agent`; sampling settings are parsed but not yet applied. |
 | Markdown agent files | ✅ | ✅ | `.opencode/agents/*.md` frontmatter is parsed; body content becomes agent instructions. |
 | `provider.<id>.options.timeout` | ✅ | partial | Integer milliseconds or `false` to disable timeout. |
+| `provider.<id>` using `@ai-sdk/openai-compatible` | ✅ | ✅ | When `options.baseURL` is configured, crabcode requests its OpenAI-compatible `/v1/models` endpoint for `/models`. Manually configured model metadata takes precedence; unsupported endpoints leave manual models unchanged. |
 | `theme` | ✅ | ✅ | In crabcode config files only. OpenCode config `theme` is ignored by crabcode. |
 | `notifications` |  | ✅ | crabcode-specific sounds, desktop notifications, and terminal alert signals such as Zed tab dots. |
 | `images` |  | ✅ | crabcode-specific image placeholder opener. |

src/command/handlers.rs

@@ -68,7 +68,6 @@ pub fn handle_sessions<'a>(
                 } else {
                     session.title.clone()
                 };
-
                 crate::command::registry::DialogItem {
                     id: session.id.clone(),
                     name,
@@ -399,6 +398,10 @@ pub async fn load_models(parsed: ParsedCommand) -> CommandResult {
         };
 
         if let Ok(discovery) = discovery.as_ref() {
+            crate::model::discovery::merge_dialog_models(
+                &mut models,
+                discovery.discover_custom_models_for_dialog().await,
+            );
             discovery.apply_custom_models_to_dialog(&mut models);
         }
 
@@ -875,6 +878,7 @@ pub async fn refresh_models() -> CommandResult {
                 return CommandResult::Success(String::new());
             }
         };
+        discovery.clear_custom_model_discovery_cache();
 
         let (providers_result, runtime_result) = tokio::join!(
             discovery.refresh_cache(),

src/model/catalog.rs

@@ -57,6 +57,10 @@ pub async fn selectable_models(
     } else {
         Vec::new()
     };
+    merge_dialog_models(
+        &mut models,
+        discovery.discover_custom_models_for_dialog().await,
+    );
     discovery.apply_custom_models_to_dialog(&mut models);
 
     let mut runtime_errors = Vec::new();