/**
 * Ring-buffered log entry storage with console interceptor.
 *
 * Provides a generic ring buffer data structure and a singleton
 * buffer that captures `[tmux-pilot]`-prefixed console output
 * while silencing it from Pi's TUI.
 */
export interface LogEntry {
    timestamp: Date;
    level: "log" | "warn" | "error";
    /** Component prefix extracted from the message, e.g. "[tracker]". */
    prefix: string;
    /** The log message text after the prefix. */
    message: string;
}
export declare class RingBuffer<T> {
    private readonly buffer;
    private head;
    private count;
    private readonly capacity;
    /**
     * Creates a ring buffer with the given capacity.
     * @param capacity Maximum number of items to hold. Default 2000. 0 disables storage.
     */
    constructor(capacity?: number);
    /**
     * Adds an item to the buffer. If at capacity, the oldest item is overwritten.
     * O(1) amortised.
     */
    push(item: T): void;
    /**
     * Returns all stored items in chronological order (oldest first).
     * O(N).
     */
    toArray(): T[];
    /** Removes all items from the buffer. */
    clear(): void;
    /** Returns the current number of items in the buffer. */
    get size(): number;
}
export declare const logBuffer: RingBuffer<LogEntry>;
/**
 * Patches `console.log`, `console.warn`, and `console.error` with
 * interceptors that capture `[tmux-pilot]`-prefixed messages into
 * the ring buffer while silencing them from Pi's TUI.
 *
 * Also emits a startup message to confirm installation.
 * Idempotent — safe to call multiple times.
 */
export declare function installInterceptor(): void;
/**
 * Restores the original console methods that were patched by
 * installInterceptor(). Safe to call even if not installed.
 */
export declare function uninstallInterceptor(): void;
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