refactor: point agent sdk imports at ts source

src/utils/messages/mappers.ts

@@ -10,7 +10,7 @@ import type {
   SDKCompactBoundaryMessage,
   SDKMessage,
   SDKRateLimitInfo,
-} from 'src/entrypoints/agentSdkTypes.js'
+} from 'src/entrypoints/agentSdkTypes.ts'
 import type { ClaudeAILimits } from 'src/services/claudeAiLimits.js'
 import { EXIT_PLAN_MODE_V2_TOOL_NAME } from 'src/tools/ExitPlanModeTool/constants.js'
 import type {

src/utils/messages/systemInit.ts

@@ -6,7 +6,7 @@ import type {
   ApiKeySource,
   PermissionMode,
   SDKMessage,
-} from 'src/entrypoints/agentSdkTypes.js'
+} from 'src/entrypoints/agentSdkTypes.ts'
 import {
   AGENT_TOOL_NAME,
   LEGACY_AGENT_TOOL_NAME,