feat(dashboard): 4-way roster (user/bot/voice/role), persistence, TTS all-emotions, layout

- 유저 등록/관리 search now has 4 types: 유저(non-bot members), 봇(bot members),
  통화방(current voice-channel members, bot flag enriched), 역할(roles — expandable
  to the members under each role; register the role OR a member under it).
- Persist settings to a JSON state store (WSAI_STATE_FILE, default
  ~/.config/wsai/state.json) so they survive a service/container restart:
  per-guild listen lists + bargeIn (BotControl), TTS base/overrides and the
  chosen STT/LLM models (Dashboard). Applied on voice-server startup before warm.
- TTS 감정 선택에 최상단 "전체변경 (모든 감정)" 추가: 적용하면 base를 그 값으로 세팅하고
  모든 per-emotion override를 지워 전 감정이 한 번에 그 값으로 말합니다.
- Move the component status bar (눈/시각/귀/LLM/입) above the bot bar.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

wsai/state_store.py

@@ -0,0 +1,61 @@
+"""Tiny JSON state store so dashboard/bot settings survive a restart.
+
+Persists things the user configures on the dashboard — per-guild listen lists,
+bot behaviour toggles, TTS controls, and the chosen STT/LLM models — to a single
+JSON file so a service or container restart keeps them.
+
+Path: ``WSAI_STATE_FILE`` env, else ``~/.config/wsai/state.json``. For a
+container deployment, mount that path (or point the env at a mounted volume) to
+keep the file across ``docker restart``.
+
+Pure stdlib, thread-safe, best-effort: a read/write failure never raises into
+the caller (the dashboard must keep working even if the disk is unwritable).
+"""
+
+from __future__ import annotations
+
+import json
+import logging
+import os
+import threading
+from typing import Any
+
+log = logging.getLogger("wsai.state")
+
+_LOCK = threading.Lock()
+
+
+def path() -> str:
+    return os.environ.get("WSAI_STATE_FILE") or os.path.expanduser("~/.config/wsai/state.json")
+
+
+def load() -> dict[str, Any]:
+    try:
+        with open(path(), encoding="utf-8") as f:
+            data = json.load(f)
+            return data if isinstance(data, dict) else {}
+    except FileNotFoundError:
+        return {}
+    except Exception as exc:  # noqa: BLE001 — corrupt/unreadable state must not crash startup
+        log.warning("state load failed (%s): %s", path(), exc)
+        return {}
+
+
+def save(state: dict[str, Any]) -> None:
+    p = path()
+    try:
+        with _LOCK:
+            os.makedirs(os.path.dirname(p), exist_ok=True)
+            tmp = p + ".tmp"
+            with open(tmp, "w", encoding="utf-8") as f:
+                json.dump(state, f, ensure_ascii=False, indent=2)
+            os.replace(tmp, p)  # atomic
+    except Exception as exc:  # noqa: BLE001
+        log.warning("state save failed (%s): %s", p, exc)
+
+
+def patch(key: str, value: Any) -> None:
+    """Read-modify-write one top-level key."""
+    s = load()
+    s[key] = value
+    save(s)