feat: add CI-gated claude-dev image package

Define claude-dev capabilities as a tested contract and deploy immutable tags only after smoke checks so daily tooling upgrades remain CI-first and rollback-safe.

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

claude-dev/scripts/smoke-auth.sh

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+require_mounts="${REQUIRE_MOUNTS:-0}"
+
+auth_ok=true
+
+check_required_file() {
+  local path="$1"
+  if [[ ! -e "$path" ]]; then
+    echo "Missing required mounted path: $path" >&2
+    auth_ok=false
+    return
+  fi
+  if [[ ! -r "$path" ]]; then
+    echo "Path is not readable: $path" >&2
+    auth_ok=false
+    return
+  fi
+  if [[ -f "$path" ]] && [[ ! -s "$path" ]]; then
+    echo "Path is empty: $path" >&2
+    auth_ok=false
+    return
+  fi
+  echo "Verified mounted path: $path"
+}
+
+if [[ "$require_mounts" == "1" ]]; then
+  check_required_file "/root/.claude"
+  check_required_file "/root/.claude.json"
+  check_required_file "/root/.gitea_token"
+
+  if [[ -f "/root/.claude/.git-credentials" ]]; then
+    echo "Verified mounted path: /root/.claude/.git-credentials"
+  else
+    echo "Missing expected git credentials file: /root/.claude/.git-credentials" >&2
+    auth_ok=false
+  fi
+fi
+
+if [[ -n "${GH_TOKEN:-}" ]]; then
+  if GH_TOKEN="$GH_TOKEN" gh auth status >/dev/null 2>&1; then
+    echo "gh auth status succeeded with GH_TOKEN"
+  else
+    echo "gh auth status failed with GH_TOKEN provided" >&2
+    auth_ok=false
+  fi
+else
+  if gh auth status >/dev/null 2>&1; then
+    echo "gh auth status succeeded using persisted auth"
+  else
+    echo "gh auth status not configured (allowed without GH_TOKEN)"
+  fi
+fi
+
+if [[ "$auth_ok" != "true" ]]; then
+  exit 1
+fi
+
+echo "Auth/config smoke checks passed"