Supertag CLI v2.5.0

Added

• MCP idle auto-exit — Server self-terminates after 30 minutes without tool calls, preventing zombie process accumulation across Claude Code sessions. Configurable via SUPERTAG_MCP_IDLE_TIMEOUT env var (set 0 to disable).
• SQLite connection health check — DeltaSyncService tests its database connection before each sync and auto-reconnects if stale, resolving "database or disk is full" errors caused by long-lived processes.
• busy_timeout on all DeltaSyncService connections — PRAGMA busy_timeout = 5000 configured on both initial and reconnected connections for better concurrent access resilience.

Fixed

• Idle timer NaN guard — Invalid SUPERTAG_MCP_IDLE_TIMEOUT values (e.g., non-numeric strings) now fall back to the 30-minute default instead of causing immediate server exit.
• Idle timer sync race — Timer now checks if a sync is in progress before exiting, deferring shutdown until the sync completes.