chore: update entry points for multi-account

- main.py calls migrate_legacy_state() before starting server
- health.py accepts account_ids parameter for per-account health checks
- _continuous_check returns per-account status instead of single snapshot

health.py

@@ -1,6 +1,6 @@
 import sqlite3
 from pathlib import Path
-from typing import Any, Dict
+from typing import Any, Dict, List, Optional
 
 from app_state import StateStore
 
@@ -11,6 +11,7 @@ def health_payload(
     state_store: StateStore,
     continuous_snapshot: Dict[str, Any],
     job_queue_size: int,
+    account_ids: Optional[List[str]] = None,
 ) -> Dict[str, Any]:
     checks = {
         "data_dir": _dir_check(data_dir, writable=True),
@@ -20,6 +21,22 @@ def health_payload(
         "continuous": _continuous_check(continuous_snapshot),
         "job_queue": {"ok": True, "size": job_queue_size},
     }
+
+    # Per-account health
+    if account_ids:
+        account_checks: Dict[str, Any] = {}
+        for acc_id in account_ids:
+            acc_dir = data_dir / "accounts" / acc_id
+            session_file = session_dir / f"{acc_id}.session"
+            account_checks[acc_id] = {
+                "data_dir": _dir_check(acc_dir),
+                "session_file": {
+                    "ok": session_file.exists(),
+                    "path": str(session_file),
+                },
+            }
+        checks["accounts"] = account_checks
+
     ok = all(item.get("ok", False) for item in checks.values())
     return {"ok": ok, "status": "ok" if ok else "degraded", "checks": checks}
 
@@ -63,11 +80,19 @@ def _sqlite_check() -> Dict[str, Any]:
 
 
 def _continuous_check(snapshot: Dict[str, Any]) -> Dict[str, Any]:
-    status = snapshot.get("status", {})
-    config = snapshot.get("config", {})
+    running_accounts = snapshot.get("running_accounts")
+    if running_accounts is None:
+        running_accounts = snapshot
     return {
         "ok": True,
-        "enabled": bool(config.get("enabled")),
-        "running": bool(status.get("running")),
-        "last_error": status.get("last_error"),
+        "account_count": len(running_accounts),
+        "accounts": {
+            aid: {
+                "running": bool((info.get("status") or info).get("running")),
+                "enabled": bool((info.get("config") or {}).get("enabled", False)),
+                "last_error": (info.get("status") or info).get("last_error"),
+            }
+            for aid, info in running_accounts.items()
+            if isinstance(info, dict)
+        },
     }

main.py

@@ -1,5 +1,6 @@
 import logging
 import sys
+from pathlib import Path
 
 from webui_server import run_server
 
@@ -11,6 +12,20 @@ def main():
         datefmt="%Y-%m-%d %H:%M:%S",
         stream=sys.stdout,
     )
+
+    logger = logging.getLogger(__name__)
+
+    # Run legacy migration before starting the server
+    from app_state import migrate_legacy_state
+
+    data_dir = Path("data")
+    session_dir = Path("session")
+    try:
+        if migrate_legacy_state(data_dir, session_dir):
+            logger.info("Legacy migration completed successfully.")
+    except Exception as exc:
+        logger.error("Migration failed: %s", exc)
+
     run_server()