refactor: apply repository naming contract

Apply the accepted pre-release package, service, type, directory, and role renames as one repository-wide change.

packages/core/tools/tests/tools.spec.ts

@@ -4,7 +4,7 @@ import { createUserMessage, CallId, HarnessError, type ContentBlock  } from '@de
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
 import type { Agent } from '@deepseek-ai/dsh-agent'
 import ApprovalService, { type ApprovalOutcome, type ApprovalRequest } from '@deepseek-ai/dsh-user-approval'
-import ToolRegistry, {
+import ToolRuntime, {
   defineContentToolFixture, defineTool, JsonSchemaError, parameterSchemaSpecToJsonSchema, validateArgs, ToolArgsError, ToolNotFoundError,
   TOOL_ABORTED, TOOL_ABORTED_BEFORE_DISPATCH,
   type InferArgs, type JsonValue, type ParameterSchemaSpec, type PreToolDecision, type PostToolDecision,
@@ -16,7 +16,7 @@ const testToolSignal = new AbortController().signal
 async function setup() {
   const ctx = new Context()
   await ctx.plugin(SystemPrompt)
-  await ctx.plugin(ToolRegistry)
+  await ctx.plugin(ToolRuntime)
   return ctx
 }
 
@@ -33,7 +33,7 @@ const echoTool = defineTool({
   },
 })
 
-describe('ToolRegistry', () => {
+describe('ToolRuntime', () => {
   it('registers tools, exposes schemas, and feeds the system-prompt assembly', async () => {
     const ctx = await setup()
     ctx.tools.register(echoTool)
@@ -2449,7 +2449,7 @@ describe('schema DSL optional and nested contracts', () => {
   })
 })
 
-describe('ToolRegistry.get', () => {
+describe('ToolRuntime.get', () => {
   it('get() returns the registered tool definition', async () => {
     const ctx = await setup()
     ctx.tools.register(echoTool)