fix: dynamic UID in first-boot-containers.sh, remove temp fix-ssh workflow

Replace hardcoded /run/user/1000 with $(id -u archipelago) so first-boot
works regardless of the archipelago user's UID.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.gitea/workflows/fix-ssh.yml

@@ -1,23 +0,0 @@
-name: Fix SSH Permissions
-
-on:
-  push:
-    branches: [main]
-
-env:
-  HOME: /tmp
-
-jobs:
-  fix-ssh:
-    runs-on: ubuntu-latest
-    timeout-minutes: 2
-    steps:
-      - name: Fix debian user UID and SSH
-        working-directory: /tmp
-        run: |
-          echo "Fixing SSH..."
-          sudo chown -R 1000:1000 /home/debian
-          sudo chmod 700 /home/debian/.ssh
-          sudo chmod 600 /home/debian/.ssh/authorized_keys
-          sudo systemctl restart sshd
-          echo "SSH fixed"

scripts/first-boot-containers.sh

@@ -44,9 +44,9 @@ SCRIPT_DIR_FBC="$(cd "$(dirname "$0")" && pwd)"
 
 # Run podman as the archipelago user (rootless) — NOT as root.
 # The backend service runs as User=archipelago and connects to the rootless
-# podman socket at /run/user/1000/podman/podman.sock. If we create containers
+# podman socket at /run/user/$(id -u archipelago)/podman/podman.sock. If we create containers
 # as root (rootful podman), the backend can't see them at all.
-DOCKER="runuser -u archipelago -- env XDG_RUNTIME_DIR=/run/user/1000 podman"
+DOCKER="runuser -u archipelago -- env XDG_RUNTIME_DIR=/run/user/$(id -u archipelago) podman"
 
 TARGET_IP=$(hostname -I 2>/dev/null | awk '{print $1}')
 [ -z "$TARGET_IP" ] && TARGET_IP="127.0.0.1"
@@ -250,11 +250,11 @@ grep -q "^archipelago:" /etc/subuid 2>/dev/null || {
 chmod 644 /etc/hosts 2>/dev/null
 
 # Ensure XDG_RUNTIME_DIR exists for rootless podman
-mkdir -p /run/user/1000
-chown archipelago:archipelago /run/user/1000
-chmod 700 /run/user/1000
+mkdir -p /run/user/$(id -u archipelago)
+chown archipelago:archipelago /run/user/$(id -u archipelago)
+chmod 700 /run/user/$(id -u archipelago)
 # Start rootless podman socket (required before first podman command)
-runuser -u archipelago -- env XDG_RUNTIME_DIR=/run/user/1000 \
+runuser -u archipelago -- env XDG_RUNTIME_DIR=/run/user/$(id -u archipelago) \
     systemctl --user start podman.socket 2>/dev/null || true
 
 # Ensure archy-net exists — critical for inter-container DNS (mempool→bitcoin, etc.)