TUI: persistent menu with prompt header and ←/Esc navigation

.github/workflows/ci.yml

@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  push:
+    branches-ignore:
+      - master
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install cross
+        uses: taiki-e/install-action@v2
+        with:
+          tool: cross
+
+      - name: Build (aarch64)
+        run: cross build --release --target aarch64-unknown-linux-gnu
+
+      - name: Upload binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: go-modules-aarch64
+          path: target/aarch64-unknown-linux-gnu/release/go-modules
+          if-no-files-found: error

CHANGELOG.md

@@ -1,3 +1,18 @@
+v3.1.0 (unreleased)
+ - TUI is now persistent: the tool no longer exits after a single action.
+   The main menu redraws after each action so multiple operations can be
+   performed in a single session.
+ - New menu layout per apt look-and-feel spec § 1–§ 2: separator / prompt /
+   separator / options / separator / footer. The prompt line ("Select what you
+   want to do") is replaced by the chosen action's name during execution.
+ - Key bindings revised: ← / q navigate one menu back; Esc / Ctrl-C / Ctrl-D
+   close the tool. Enter still selects.
+ - Modules are re-scanned at the top of every loop iteration so the overview
+   table reflects post-update state.
+ - CLI mode preserved (one-shot, exits at end). Exit codes on rare hard-error
+   paths (corrupted firmware) are now identical to soft errors — see the PR
+   description.
+
 v3.0.0
  - Added `check` command: fetches the latest firmware for all module hardware versions
    from the GOcontroll cloud (firmware.gocontroll.com) into /lib/firmware/gocontroll/