refactor: consolidate duplicate utility functions (#12439)

* refactor: consolidate duplicate utility functions

- Add escapeRegExp to src/utils.ts and remove 10 local duplicates
- Rename bash-tools clampNumber to clampWithDefault (different signature)
- Centralize formatError calls to use formatErrorMessage from infra/errors.ts
- Re-export formatErrorMessage from cli/cli-utils.ts to preserve API

* refactor: consolidate remaining escapeRegExp duplicates

* refactor: consolidate sleep, stripAnsi, and clamp duplicates

src/gateway/server-methods/logs.ts

@@ -2,6 +2,7 @@ import fs from "node:fs/promises";
 import path from "node:path";
 import type { GatewayRequestHandlers } from "./types.js";
 import { getResolvedLoggerSettings } from "../../logging.js";
+import { clamp } from "../../utils.js";
 import {
   ErrorCodes,
   errorShape,
@@ -15,10 +16,6 @@ const MAX_LIMIT = 5000;
 const MAX_BYTES = 1_000_000;
 const ROLLING_LOG_RE = /^openclaw-\d{4}-\d{2}-\d{2}\.log$/;
 
-function clamp(value: number, min: number, max: number) {
-  return Math.max(min, Math.min(max, value));
-}
-
 function isRollingLogFile(file: string): boolean {
   return ROLLING_LOG_RE.test(path.basename(file));
 }