research: delete Hono backend (do not merge) (#25667)

packages/sdk/js/script/build.ts

@@ -9,16 +9,9 @@ import path from "path"
 
 import { createClient } from "@hey-api/openapi-ts"
 
-const openapiSource = process.env.OPENCODE_SDK_OPENAPI === "hono" ? "hono" : "httpapi"
 const opencode = path.resolve(dir, "../../opencode")
 
-// `bun dev generate` now derives the spec from the Effect HttpApi contract by
-// default; pass `--hono` to fall back to the legacy Hono spec for parity diffs.
-if (openapiSource === "httpapi") {
-  await $`bun dev generate > ${dir}/openapi.json`.cwd(opencode)
-} else {
-  await $`bun dev generate --hono > ${dir}/openapi.json`.cwd(opencode)
-}
+await $`bun dev generate > ${dir}/openapi.json`.cwd(opencode)
 
 await createClient({
   input: "./openapi.json",