Add OMP as a built-in importable provider (#1388)

* Support imports from Pi-compatible providers

* Add OMP as a built-in provider

* Address Pi session scanner review

* Restore Pi session import discovery

* Update provider test for disabled OMP

packages/protocol/src/provider-manifest.ts

@@ -25,6 +25,7 @@ export interface AgentProviderDefinition {
   id: string;
   label: string;
   description: string;
+  enabledByDefault?: boolean;
   defaultModeId: string | null;
   modes: AgentProviderModeDefinition[];
   voice?: {
@@ -211,6 +212,14 @@ export const AGENT_PROVIDER_DEFINITIONS: AgentProviderDefinition[] = [
     defaultModeId: null,
     modes: [],
   },
+  {
+    id: "omp",
+    label: "OMP",
+    description: "Pi-compatible coding agent distributed as Oh My Pi",
+    enabledByDefault: false,
+    defaultModeId: null,
+    modes: [],
+  },
 ];
 
 export const DEV_AGENT_PROVIDER_DEFINITIONS: AgentProviderDefinition[] = [