fix: make manual dev checkout work (fetch all branch tips, drop bad cd)

.gitea/workflows/build-dev.yml

@@ -8,11 +8,11 @@ jobs:
     runs-on: build-server
 
     steps:
-      - name: Checkout
-        run: git clone --depth 1 --branch "${GITEA_REF_NAME}" ssh://git@gitea.radiantwavetech.com:2222/RadiantWaveTech/KioskConfig.git .
+      - name: Clone Repository
+        run: git clone --depth 1 --no-single-branch ssh://git@gitea.radiantwavetech.com:2222/RadiantWaveTech/KioskConfig.git .
 
-      # flake.lock is updated manually (committing an updated lock is the
-      # release trigger); CI only builds what is checked in.
+      - name: Checkout dev branch
+        run: git checkout dev
 
       - name: Prepare output directory
         run: mkdir -p /home/user/radiantwave