fix(core): import the AI tool types from the effect entrypoint

Author: Te-River

packages/core/src/session/goal-verify.ts

@@ -1,6 +1,6 @@
 export * as SessionGoalVerify from "./goal-verify.js"
 
-import { LLMClient, LLMEvent, Message, SystemPart } from "@opencode/ai"
+import { LLMClient, LLMEvent, Message, SystemPart } from "@opencode/ai/effect"
 import type { Agent } from "@opencode/schema/agent"
 import type { FileDiff } from "@opencode/schema/file-diff"
 import { SessionGoal as SessionGoalSchema } from "@opencode/schema/session-goal"

packages/core/src/tool/plugin/goal-todo.ts

@@ -1,6 +1,6 @@
 export * as GoalTodoTool from "./goal-todo.js"
 
-import { ToolFailure } from "@opencode/ai"
+import { ToolFailure } from "@opencode/ai/effect"
 import type { Context } from "@opencode/plugin/effect/plugin"
 import { SessionGoal as SessionGoalSchema } from "@opencode/schema/session-goal"
 import { Effect, Schema } from "effect"

packages/core/src/tool/plugin/goal.ts

@@ -1,6 +1,6 @@
 export * as GoalTool from "./goal.js"
 
-import { ToolFailure } from "@opencode/ai"
+import { ToolFailure } from "@opencode/ai/effect"
 import type { Context } from "@opencode/plugin/effect/plugin"
 import { SessionGoal as SessionGoalSchema } from "@opencode/schema/session-goal"
 import { Effect, Schema } from "effect"