Initial commit: SSH config and public keys

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

.gitignore

@@ -0,0 +1,15 @@
+# === 私鑰 — 絕對不可提交 ===
+id_rsa
+id_ecdsa
+ecdsa-key-*
+google_compute_engine
+*.pem
+
+# === 動態 / 暫存檔案 ===
+known_hosts
+known_hosts.old
+google_compute_known_hosts
+sockets/
+
+# === 公鑰（選擇性排除，取消註解即可追蹤） ===
+# *.pub