feat(id): brand SessionID through Drizzle and Zod schemas (#16953)

packages/opencode/src/tool/tool.ts

@@ -2,6 +2,7 @@ import z from "zod"
 import type { MessageV2 } from "../session/message-v2"
 import type { Agent } from "../agent/agent"
 import type { PermissionNext } from "../permission/next"
+import type { SessionID } from "../session/schema"
 import { Truncate } from "./truncation"
 
 export namespace Tool {
@@ -14,7 +15,7 @@ export namespace Tool {
   }
 
   export type Context<M extends Metadata = Metadata> = {
-    sessionID: string
+    sessionID: SessionID
     messageID: string
     agent: string
     abort: AbortSignal