卫戍协议：盟约 web remake — initial import

Online co-op browser remake of Arknights' Stronghold Protocol: Alliance
(client-simulated combat, official waves/bonds/items/strategies, 3D board,
facing wheel, operator loadout, official emotes, deployment scripts).

.gitignore

@@ -0,0 +1,39 @@
+# --- dependencies & generated client libs -------------------------------------------------------
+node_modules/
+# copied from node_modules by tools/vendor.mjs (postinstall); never commit third-party builds
+public/vendor/
+
+# --- game assets: (c) Hypergryph / Yostar, fetched or extracted locally, NEVER committed ----------
+# tools/fetch-assets.mjs → public/assets/** (~250 MB) and public/fonts/** (+ fonts.css)
+public/assets/
+public/fonts/
+# tools/local-extract/extract.py → public/assets/local/** and this per-machine manifest
+# (optional: the client and the tests work without it)
+data/local-assets.json
+# download caches, upstream tables, ledgers, reports, setup state
+.cache/
+
+# --- Python (optional local-client extraction) ----------------------------------------------------
+.venv*/
+venv/
+__pycache__/
+*.py[cod]
+
+# --- tests & logs ----------------------------------------------------------------------------------
+test/e2e/out/
+logs/
+*.log
+
+# --- per-machine config (scripts/install-service-windows.ps1) ------------------------------------
+scripts/service.env.cmd
+.env
+.env.*
+
+# --- OS / editor clutter ---------------------------------------------------------------------------
+.DS_Store
+Thumbs.db
+desktop.ini
+*.swp
+.idea/
+.vscode/
+.claude/