refactor(connectors): remove adapter module references from services

Drops every `definition.module.*` call and legacy id hardcode (claude_local,
codex_local, gemini_local, claude_compat_*) from the connector services.
Health checks now evaluate stored credentials against the declarative auth
descriptor, model policy reads provider models via pi-ai, matching keys off
provider ids, and hire-hook logs activity without invoking an adapter hook.
Introduces a local normalizeCommandValue helper to replace the deleted
@agentcompany/adapter-utils/server-utils import.

src/main/credentials/credential-resolver.ts

@@ -122,8 +122,10 @@ export class CredentialResolver {
         if (cfg.credentialsPath) env.GOOGLE_APPLICATION_CREDENTIALS = cfg.credentialsPath;
         return { apiKey: "", extraEnv: env };
       }
-      default:
-        throw new CredentialError("CREDENTIAL_INVALID", connectorId, `Unsupported auth kind: ${String(auth.type)}`);
+      default: {
+        const exhaustive: never = auth;
+        throw new CredentialError("CREDENTIAL_INVALID", connectorId, `Unsupported auth descriptor: ${JSON.stringify(exhaustive)}`);
+      }
     }
   }