feat(tui): add v2 terminal interface

packages/cli/src/services/standalone.ts

@@ -0,0 +1,38 @@
+import { ServerAuth } from "@opencode-ai/server/auth"
+import { CrossSpawnSpawner } from "@opencode-ai/core/cross-spawn-spawner"
+import { Effect, Schema, Stream } from "effect"
+import { ChildProcess, ChildProcessSpawner } from "effect/unstable/process"
+import { randomBytes } from "node:crypto"
+import path from "node:path"
+
+const Ready = Schema.Struct({ url: Schema.String })
+const decodeReady = Schema.decodeUnknownPromise(Schema.fromJsonString(Ready))
+
+function command(password: string) {
+  const compiled = path.basename(process.execPath).replace(/\.exe$/, "") !== "bun"
+  const entrypoint = compiled ? [] : process.argv[1] ? [process.argv[1]] : []
+  if (!compiled && entrypoint.length === 0) throw new Error("Failed to resolve CLI entrypoint")
+  return ChildProcess.make(process.execPath, [...entrypoint, "serve", "--stdio", "--port", "0"], {
+    cwd: process.cwd(),
+    env: { OPENCODE_SERVER_PASSWORD: password },
+    extendEnv: true,
+    stdin: "ignore",
+    stderr: "ignore",
+    killSignal: "SIGKILL",
+  })
+}
+
+export const transport = Effect.fn("cli.standalone.transport")(
+  function* () {
+    const password = randomBytes(32).toString("base64url")
+    const spawner = yield* ChildProcessSpawner.ChildProcessSpawner
+    const proc = yield* spawner.spawn(command(password))
+    const output = yield* proc.stdout.pipe(Stream.decodeText(), Stream.splitLines, Stream.take(1), Stream.mkString)
+    if (!output) return yield* Effect.fail(new Error("Standalone server exited before reporting readiness"))
+    const ready = yield* Effect.tryPromise(() => decodeReady(output))
+    return { url: ready.url, headers: ServerAuth.headers({ password }) }
+  },
+  Effect.provide(CrossSpawnSpawner.defaultLayer),
+)
+
+export * as Standalone from "./standalone"