Prepare Effect HttpApi backend parity (#24853)

packages/opencode/src/storage/storage.ts

@@ -5,6 +5,7 @@ import { NamedError } from "@opencode-ai/core/util/error"
 import z from "zod"
 import { AppFileSystem } from "@opencode-ai/core/filesystem"
 import { Effect, Exit, Layer, Option, RcMap, Schema, Context, TxReentrantLock } from "effect"
+import { NonNegativeInt } from "@/util/schema"
 import { Git } from "@/git"
 
 const log = Log.create({ service: "storage" })
@@ -41,8 +42,8 @@ const MessageFile = Schema.Struct({
 })
 
 const DiffFile = Schema.Struct({
-  additions: Schema.Number,
-  deletions: Schema.Number,
+  additions: NonNegativeInt,
+  deletions: NonNegativeInt,
 })
 
 const SummaryFile = Schema.Struct({