feat(database): add account-scoped database manager

drizzle/0002_lifeos_db_admin.sql

@@ -0,0 +1,12 @@
+CREATE TABLE lifeos_admin_sessions (
+  token_hash TEXT PRIMARY KEY,
+  user_id TEXT NOT NULL,
+  expires_at INTEGER NOT NULL
+);
+CREATE INDEX idx_lifeos_admin_sessions_user ON lifeos_admin_sessions(user_id);
+
+CREATE TABLE lifeos_admin_attempts (
+  user_id TEXT PRIMARY KEY,
+  failures INTEGER NOT NULL DEFAULT 0,
+  locked_until INTEGER NOT NULL DEFAULT 0
+);

drizzle/meta/_journal.json

@@ -15,6 +15,13 @@
       "when": 1790640000000,
       "tag": "0001_lifeos_records",
       "breakpoints": true
+    },
+    {
+      "idx": 2,
+      "version": "7",
+      "when": 1790649000000,
+      "tag": "0002_lifeos_db_admin",
+      "breakpoints": true
     }
   ]
 }