feat(git-hangman-lab): repo search - search repository by exact name

Send GET to /api/v1/repos/search?q={name} and filter results
by exact name match. Output: {"ok": true/false, "data": [...]}
with each match containing id, owner.login, name, clone_url.

git-hangman-lab/scripts/repo

@@ -300,11 +300,53 @@ do_get_latest() {
   fi
 }
 
+# ─────────────────────────────────────────────
+# search
+# ─────────────────────────────────────────────
+do_search() {
+  if [[ $# -lt 1 ]]; then
+    echo "Usage: $0 search <exact-repo-name>"
+    exit 1
+  fi
+
+  REPO_NAME="$1"
+
+  TOKEN=$(secret-mgr get-secret --key git-access-token 2>/dev/null || secret-mgr get-secret --key git)
+
+  RESP=$(curl -s -H "Authorization: token $TOKEN" \
+    "https://git.hangman-lab.top/api/v1/repos/search?q=${REPO_NAME}")
+
+  if ! echo "$RESP" | python3 -c "
+import sys, json
+data = json.load(sys.stdin)
+results = data.get('data', []) if isinstance(data, dict) else []
+ok = True
+matches = []
+for r in results:
+    if isinstance(r, dict) and r.get('name') == '${REPO_NAME}':
+        owner = r.get('owner', {})
+        if isinstance(owner, dict):
+            login = owner.get('login', '')
+        else:
+            login = ''
+        matches.append({
+            'id': r.get('id'),
+            'owner': {'login': login},
+            'name': r.get('name'),
+            'clone_url': r.get('clone_url', '')
+        })
+print(json.dumps({'ok': ok, 'data': matches}))
+" 2>/dev/null; then
+    echo '{"ok": false, "data": []}'
+    exit 0
+  fi
+}
+
 # ─────────────────────────────────────────────
 # Dispatch
 # ─────────────────────────────────────────────
 if [[ $# -lt 1 ]]; then
-  echo "Usage: $0 <create|add-collaborators|list-all|config> [args...]"
+  echo "Usage: $0 <create|add-collaborators|list-all|config|search> [args...]"
   echo ""
   echo "Commands:"
   echo "  create <repo-name>           Create a new repository"
@@ -312,6 +354,7 @@ if [[ $# -lt 1 ]]; then
   echo "  list-all                     List all visible repositories"
   echo "  config --repo-path <path> [--recursive]  Configure repo credentials"
   echo "  get-latest <repo-name> [branch] [--recursive] [--force]  Pull latest or clone if missing"
+  echo "  search <exact-repo-name>      Search for a repository by exact name"
   exit 1
 fi
 
@@ -323,5 +366,6 @@ case "$subcommand" in
   list-all)         do_list_all "$@" ;;
   config)           do_config "$@" ;;
   get-latest)       do_get_latest "$@" ;;
+  search)           do_search "$@" ;;
   *) echo "Unknown command: $subcommand"; exit 1 ;;
 esac