Interface ObserverRoutingDecision

interface ObserverRoutingDecision {
    timestamp: string;
    taskId: string;
    taskDescription: string;
    selectedCli: "claude" | "gemini" | "codex" | "opencode";
    confidence: number;
    reason: string;
    alternatives: readonly ("claude" | "gemini" | "codex" | "opencode")[];
    stagesExecuted: readonly string[];
    decisionTimeMs: number;
    withinBudget?: boolean;
    topsisScore?: number;
    ucbScore?: number;
}