fix(opencode): remove automatic full session diffs (#30127)

packages/opencode/src/session/session.ts

@@ -25,7 +25,6 @@ import { or } from "drizzle-orm"
 import type { SQL } from "drizzle-orm"
 import { PartTable, SessionTable } from "@opencode-ai/core/session/sql"
 import { ProjectTable } from "@opencode-ai/core/project/sql"
-import { Storage } from "@/storage/storage"
 import * as Log from "@opencode-ai/core/util/log"
 import { MessageV2 } from "./message-v2"
 import type { InstanceContext } from "../project/instance-context"
@@ -536,7 +535,7 @@ export type Patch = Omit<Partial<Info>, "time" | "share" | "summary" | "revert"
 export const layer: Layer.Layer<
   Service,
   never,
-  BackgroundJob.Service | Storage.Service | RuntimeFlags.Service | Database.Service | EventV2Bridge.Service
+  BackgroundJob.Service | RuntimeFlags.Service | Database.Service | EventV2Bridge.Service
 > = Layer.effect(
   Service,
   Effect.gen(function* () {
@@ -544,7 +543,6 @@ export const layer: Layer.Layer<
     const database = yield* Database.Service
     const background = yield* BackgroundJob.Service
     const events = yield* EventV2Bridge.Service
-    const storage = yield* Storage.Service
     const flags = yield* RuntimeFlags.Service
 
     const locationForSession = Effect.fnUntraced(function* (sessionID: SessionID) {
@@ -887,9 +885,8 @@ export const layer: Layer.Layer<
     })
 
     const diff = Effect.fn("Session.diff")(function* (sessionID: SessionID) {
-      return yield* storage
-        .read<Snapshot.FileDiff[]>(["session_diff", sessionID])
-        .pipe(Effect.orElseSucceed((): Snapshot.FileDiff[] => []))
+      void sessionID
+      return [] as Snapshot.FileDiff[]
     })
 
     const messages: Interface["messages"] = Effect.fn("Session.messages")(function* (input) {
@@ -1013,7 +1010,6 @@ export const layer: Layer.Layer<
 
 export const defaultLayer = layer.pipe(
   Layer.provide(BackgroundJob.defaultLayer),
-  Layer.provide(Storage.defaultLayer),
   Layer.provide(Database.defaultLayer),
   Layer.provide(EventV2Bridge.defaultLayer),
   Layer.provide(SessionV2.defaultLayer),