fix: restore lint/build gates

src/agents/auth-profiles/oauth.ts

@@ -20,7 +20,7 @@ const OAUTH_PROVIDER_IDS = new Set<OAuthProvider>(
 );
 
 const isOAuthProvider = (provider: string): provider is OAuthProvider =>
-  OAUTH_PROVIDER_IDS.has(provider);
+  OAUTH_PROVIDER_IDS.has(provider as OAuthProvider);
 
 const resolveOAuthProvider = (provider: string): OAuthProvider | null =>
   isOAuthProvider(provider) ? provider : null;

src/agents/pi-embedded-runner/system-prompt.ts

@@ -74,8 +74,11 @@ export function buildEmbeddedSystemPrompt(params: {
   });
 }
 
-export function createSystemPromptOverride(systemPrompt: string): string {
-  return systemPrompt.trim();
+export function createSystemPromptOverride(
+  systemPrompt: string,
+): (defaultPrompt?: string) => string {
+  const override = systemPrompt.trim();
+  return (_defaultPrompt?: string) => override;
 }
 
 export function applySystemPromptOverrideToSession(session: AgentSession, override: string) {

src/agents/pi-tool-definition-adapter.ts

@@ -40,9 +40,9 @@ export function toToolDefinitions(tools: AnyAgentTool[]): ToolDefinition[] {
       execute: async (
         toolCallId,
         params,
-        signal,
         onUpdate: AgentToolUpdateCallback<unknown> | undefined,
         _ctx,
+        signal,
       ): Promise<AgentToolResult<unknown>> => {
         try {
           return await tool.execute(toolCallId, params, signal, onUpdate);
@@ -91,9 +91,9 @@ export function toClientToolDefinitions(
       execute: async (
         toolCallId,
         params,
-        _signal,
         _onUpdate: AgentToolUpdateCallback<unknown> | undefined,
         _ctx,
+        _signal,
       ): Promise<AgentToolResult<unknown>> => {
         const outcome = await runBeforeToolCallHook({
           toolName: func.name,