/**
 * cli-context-inject.ts
 *
 * Called by Claude Code's SessionStart hook (matchers: startup|resume|clear|compact).
 *
 * Two responsibilities, branched by hook `source`:
 *   - clear|compact: emit a compact project + rules context block to stdout
 *     for re-injection after the prior context was wiped (~200 tokens).
 *   - all sources: if the previous session lacks an arc summary, spawn
 *     `hmem summarize-session` asynchronously. This closes the gap for
 *     sessions that ended without /clear (issue #31).
 *
 * Usage: hmem context-inject  (reads stdin JSON from Claude Code hook)
 *
 * Requires env:
 *   HMEM_PATH        — path to .hmem file (auto-detected)
 *   HMEM_PROJECT_DIR — directory for config + company.hmem
 */
export declare function contextInject(): Promise<void>;