feat(core): admit v2 skill guidance (#30843)

packages/core/src/session/store.ts

@@ -3,7 +3,7 @@ export * as SessionStore from "./store"
 import { eq } from "drizzle-orm"
 import { Context, Effect, Layer, Schema } from "effect"
 import { Database } from "../database/database"
-import { SessionContext } from "./context"
+import { SessionHistory } from "./history"
 import { MessageDecodeError } from "./error"
 import { SessionMessage } from "./message"
 import { SessionSchema } from "./schema"
@@ -36,10 +36,10 @@ export const layer = Layer.effect(
         return row ? fromRow(row) : undefined
       }),
       context: Effect.fn("SessionStore.context")(function* (sessionID) {
-        return yield* SessionContext.load(db, sessionID)
+        return yield* SessionHistory.load(db, sessionID)
       }),
       runnerContext: Effect.fn("SessionStore.runnerContext")(function* (sessionID, baselineSeq) {
-        return yield* SessionContext.loadForRunner(db, sessionID, baselineSeq)
+        return yield* SessionHistory.loadForRunner(db, sessionID, baselineSeq)
       }),
       message: Effect.fn("SessionStore.message")(function* (messageID) {
         const row = yield* db