refactor: ts in packages use extensionless import

packages/llm/src/assembler.ts

@@ -5,9 +5,9 @@
  * @module @deepseek-ai/dsh-llm/assembler
  */
 
-import { CallId } from './brand.ts'
-import { assertNever } from './never.ts'
-import type { ContentBlock, FinishReason, GenerateResult, Message, StreamChunk, TokenUsage } from './types.ts'
+import { CallId } from './brand'
+import { assertNever } from './never'
+import type { ContentBlock, FinishReason, GenerateResult, Message, StreamChunk, TokenUsage } from './types'
 
 interface PartialBlock {
   blockType: string

packages/llm/src/index.ts

@@ -7,15 +7,15 @@
  */
 
 import { Context, Service } from 'cordis'
-import type { ContentBlock, GenerateOptions, GenerateResult, StreamChunk } from './types.ts'
-import { BlockAssembler } from './assembler.ts'
-import { HarnessError } from './error.ts'
+import type { ContentBlock, GenerateOptions, GenerateResult, StreamChunk } from './types'
+import { BlockAssembler } from './assembler'
+import { HarnessError } from './error'
 
-export * from './brand.ts'
-export * from './never.ts'
-export * from './error.ts'
-export * from './types.ts'
-export { BlockAssembler } from './assembler.ts'
+export * from './brand'
+export * from './never'
+export * from './error'
+export * from './types'
+export { BlockAssembler } from './assembler'
 
 declare module 'cordis' {
   interface Context {

packages/llm/src/types.ts

@@ -19,7 +19,7 @@
  * ```
  */
 
-import type { CallId } from './brand.ts'
+import type { CallId } from './brand'
 
 /** Cache hint attached to a content block (provider-interpreted). */
 export type CacheHint = 'ephemeral'