feat: revamp web hub — global connection status, array config editor, log streaming

- Global connection badge in app header (persistent dashboard SSE via ConnectionProvider)
- LogProvider keeps log data and SSE stream alive across page switches (no reload spinner)
- Config drawer: password reveal toggle, array-type row editor for list fields
- Plugin management: optimistic updates, race-free loading, reset all group overrides
- Logs: load-earlier pagination; backend tail-read optimization (before/end offsets)
- web_auth: Web password changes persist (sync_admin seeding only when .env has explicit key)
- Dashboard: collect in thread pool + 1s result cache
- ErrorBoundary + local Suspense: plugin chunk loading stays inside content area
- UI polish: table row hover, mobile header/breadcrumb fixes, wider config drawer
- config_standard: array type inference for list fields; array env skip
- random_jm_code / steam_info: array schema migration; README web frontend note

Co-Authored-By: Claude Code <noreply@anthropic.com>

dev/plugin_template/nonebot_plugin_template/repository.py

@@ -0,0 +1,37 @@
+"""Model 层的数据访问：唯一读写入口(此处用 JSON 文件示例)。"""
+
+from __future__ import annotations
+
+import json
+import os
+from pathlib import Path
+
+# Runtime data belongs under hexi/data, not beside importable plugin code.
+_DATA_DIR = Path(__file__).resolve().parents[2] / "data" / "nonebot_plugin_template"
+_STORE = _DATA_DIR / "store.json"
+
+
+def _load() -> dict:
+    if _STORE.exists():
+        try:
+            return json.loads(_STORE.read_text("utf-8"))
+        except json.JSONDecodeError:
+            return {}
+    return {}
+
+
+def _save(data: dict) -> None:
+    _DATA_DIR.mkdir(parents=True, exist_ok=True)
+    tmp = _STORE.with_suffix(".tmp")
+    tmp.write_text(json.dumps(data, ensure_ascii=False, indent=2), "utf-8")
+    os.replace(tmp, _STORE)  # 原子写
+
+
+def get_record(key: str):
+    return _load().get(key)
+
+
+def save_record(key: str, value) -> None:
+    data = _load()
+    data[key] = value
+    _save(data)