Relax freshness limits and tolerate transient RCON failures

src/lib/server/db/index.ts

@@ -35,6 +35,7 @@ const SERVERS_COLUMNS: Array<{ name: string; ddl: string }> = [
     { name: 'last_roster', ddl: 'ALTER TABLE servers ADD COLUMN last_roster TEXT' },
     { name: 'last_seen_at', ddl: 'ALTER TABLE servers ADD COLUMN last_seen_at TEXT' },
     { name: 'last_error', ddl: 'ALTER TABLE servers ADD COLUMN last_error TEXT' },
+    { name: 'rcon_failures', ddl: 'ALTER TABLE servers ADD COLUMN rcon_failures INTEGER NOT NULL DEFAULT 0' },
     { name: 'last_reply_snippet', ddl: 'ALTER TABLE servers ADD COLUMN last_reply_snippet TEXT' },
     // Script-scope columns — static per server, populated via server-edit UI.
     { name: 'game', ddl: 'ALTER TABLE servers ADD COLUMN game TEXT' },

src/lib/server/db/schema.sql

@@ -80,6 +80,7 @@ CREATE TABLE IF NOT EXISTS servers (
     last_roster      TEXT,                                -- JSON array of RconPlayer
     last_seen_at     TEXT,                                -- ISO ts of last successful RCON reply
     last_error       TEXT,                                -- last RCON failure reason (cleared on success)
+    rcon_failures    INTEGER NOT NULL DEFAULT 0,          -- consecutive monitoring failures, capped at two
     last_reply_snippet TEXT,                              -- hex+ASCII of last bad-reply UDP payload
     -- Provisioning fields — set when Electric Cherry creates the deployment.
     game_mode        TEXT,                                -- 'zombie' | 'mp' | 'sp' (currently zombie only)