Prepare Effect HttpApi backend parity (#24853)

packages/opencode/src/snapshot/index.ts

@@ -10,7 +10,7 @@ import { Hash } from "@opencode-ai/core/util/hash"
 import { Config } from "@/config/config"
 import { Global } from "@opencode-ai/core/global"
 import * as Log from "@opencode-ai/core/util/log"
-import { withStatics } from "@/util/schema"
+import { NonNegativeInt, withStatics } from "@/util/schema"
 import { zod } from "@/util/effect-zod"
 
 export const Patch = Schema.Struct({
@@ -22,8 +22,8 @@ export type Patch = typeof Patch.Type
 export const FileDiff = Schema.Struct({
   file: Schema.String,
   patch: Schema.String,
-  additions: Schema.Number,
-  deletions: Schema.Number,
+  additions: NonNegativeInt,
+  deletions: NonNegativeInt,
   status: Schema.optional(Schema.Literals(["added", "deleted", "modified"])),
 })
   .annotate({ identifier: "SnapshotFileDiff" })