refactor: hide shared constants

src/process/linux-oom-score.ts

@@ -17,7 +17,7 @@ import fs from "node:fs";
  * `params.env` for per-child overrides.
  */
 
-export const CHILD_OOM_SCORE_ADJ_ENV_KEY = "OPENCLAW_CHILD_OOM_SCORE_ADJ";
+const CHILD_OOM_SCORE_ADJ_ENV_KEY = "OPENCLAW_CHILD_OOM_SCORE_ADJ";
 const OOM_SCORE_WRAP_SHELL = "/bin/sh";
 const OOM_SCORE_WRAP_SCRIPT = 'echo 1000 > /proc/self/oom_score_adj 2>/dev/null; exec "$0" "$@"';
 

src/shared/assistant-error-format.ts

@@ -17,7 +17,7 @@ const STANDALONE_HTML_ERROR_HINT_RE =
 
 export const MALFORMED_STREAMING_FRAGMENT_ERROR_MESSAGE =
   "OpenClaw transport error: malformed_streaming_fragment";
-export const MALFORMED_STREAMING_FRAGMENT_USER_MESSAGE =
+const MALFORMED_STREAMING_FRAGMENT_USER_MESSAGE =
   "LLM streaming response contained a malformed fragment. Please try again.";
 
 type ErrorPayload = Record<string, unknown>;

src/shared/google-turn-ordering.ts

@@ -1,6 +1,6 @@
 import type { AgentMessage } from "@mariozechner/pi-agent-core";
 
-export const GOOGLE_TURN_ORDER_BOOTSTRAP_TEXT = "(session bootstrap)";
+const GOOGLE_TURN_ORDER_BOOTSTRAP_TEXT = "(session bootstrap)";
 
 export function sanitizeGoogleAssistantFirstOrdering(messages: AgentMessage[]): AgentMessage[] {
   const first = messages[0] as { role?: unknown; content?: unknown } | undefined;

src/shared/node-presence.ts

@@ -2,7 +2,7 @@ import { normalizeOptionalString } from "./string-coerce.js";
 
 export const NODE_PRESENCE_ALIVE_EVENT = "node.presence.alive";
 
-export const NODE_PRESENCE_ALIVE_REASONS = [
+const NODE_PRESENCE_ALIVE_REASONS = [
   "background",
   "silent_push",
   "bg_app_refresh",