feat: configure [backend] loads existing backend config rather than just overwriting it

1 files changed, 2 insertions, 3 deletions

diff --git a/README.md b/README.md
index 05ca145..7f07fde 100644
--- a/README.md
+++ b/README.md
@@ -50,11 +50,10 @@ A full-screen TUI opens and shows each backend's status in a table — **unavail
 
 - **Convert books…** — set everything on one screen. The first field picks the **Backend**: each backend appears as a managed entry (e.g. `audio.cpp`) when it's installed and configured here, plus a `[remote]` entry (e.g. `audio.cpp [remote]`) when a running server was found at its remote URL. The rest of the options change to what that backend supports: model, voice and instructions for audio.cpp; speaker or clone .wav for qwen; voice for faster — plus output format, speed, whether to combine all chapters into one file, and debug mode. A managed entry reads its local `server.json` / `voices.json`; a `[remote]` entry queries the server itself instead (audio.cpp lists its models and voices over HTTP, faster asks you to type a voice name). Focus starts on **Generate!**, so Enter accepts the defaults. The "combine chapters" option is hidden for `m4b`, which is always one file.
 - After **Generate!**, a full-screen run view takes over instead of dumping you into console output. The top shows the server status — *starting* (a managed server that needed booting is spawned and waited on until it actually answers HTTP, not just accepts TCP connections), *ready*, *processing*, or *error* — and the bottom shows the conversion with a progress bar for the current book's chunks (`Chunk 45/120`) and elapsed time. Esc or `q` first asks whether to cancel processing, then (when this run started the server) whether to shut it down, then returns to the menu. An error — the server exits while booting, stops mid-conversion, or a chunk fails and the book aborts — switches the corresponding state to *error* and waits for a key before returning to the menu, so the failure is never scrolled away (full detail stays in `app/logs/audiobook_<date>.log`), or
-- **Set up a backend…** — clone, build, and configure a backend end-to-end (audio.cpp, qwen, faster), or
-- **Configure a backend…** — regenerate its config (a new `server.json`, rebuild `voices.json`, change ports/speaker), or
+- **Configure backends…** — one menu for installing, configuring, and removing backends. Its options are populated from what's currently detected: **Install Backend** (when any backend isn't installed yet), **Configure audio.cpp / qwen-tts / faster-qwen3-tts** (one per installed backend — rerunning its setup wizard acts as a "modify": an existing `server.json` / `voices.json` is loaded and its values pre-filled instead of being overwritten, and audio.cpp offers to delete already-downloaded models you uncheck), **Download Missing Models (audio.cpp)** (runs `model_manager_v2.py` for every model in `server.json` that isn't downloaded yet), and **Uninstall Backend** (removes a backend's files from the managed venv), or
 - **Server…** — manually start or stop a configured backend's server (the hub spawns it in the managed venv and polls until it answers).
 
-**Configure a backend…** and **Server…** only appear once at least one backend is installed — a merely-running external server unlocks **Convert books…**, but configuring it or starting/stopping its server needs it on this machine.
+**Server…** only appears once at least one backend is installed — a merely-running external server unlocks **Convert books…**, but starting/stopping its server needs it on this machine. **Configure backends…** is always available (there is always something to install or remove).
 
 Everything the TUI does can also be scripted with flags: `python audiobook.py --backend audiocpp --model higgs --voice narrator`, or `python app/backends/audiocpp.py --families higgs_audio_tts --clone --build-backend cuda`.