#7982: Save API Usage: Use Atlas Browser ChatGPT Capabilities

## Summary - Prefer ChatGPT Atlas for browser-scoped web_search and web_fetch, with automatic fallback to existing providers. - Add a browser-only Atlas action to run ChatGPT tasks via the Atlas UI. - Add Atlas profile auto-detection and per-profile executable path support. ## Motivation Atlas uses ChatGPT in the browser instead of API-based models. Routing browser-scoped tasks through Atlas reduces API usage while keeping the rest of the framework unchanged. ## Behavior - If Atlas is available (macOS), web_search/web_fetch use Atlas first, then fall back to Brave/Perplexity or HTTP fetch when Atlas is unavailable. - The new browser action `action="atlas"` is explicitly scoped to browser tasks only. - Non-browser tasks still use the existing API model flow. ## Issue - https://github.com/openclaw/openclaw/issues/8781 ## Testing - `corepack pnpm tsgo` - `corepack pnpm lint` - `corepack pnpm format` - `pnpm build` <!-- greptile_comment --> <h2>Greptile Overview</h2> <h3>Greptile Summary</h3> This PR adds an Atlas-backed path for browser-scoped web tasks: a new `atlas` browser action plus Atlas-first execution for `web_search`/`web_fetch` with fallbacks to existing providers. It also adds macOS Atlas executable/profile auto-detection and per-profile `executablePath` support for managed browser profiles, along with CLI completion caching and related docs updates. Key integration points are the new `src/agents/tools/atlas.ts` Playwright automation, the Atlas-first routing in `src/agents/tools/web-search.ts` and `src/agents/tools/web-fetch.ts`, and browser config changes (`src/browser/config.ts`, `src/browser/chrome*.ts`) to surface an `atlas` profile when available. <h3>Confidence Score: 3/5</h3> - Mostly safe to merge, but Atlas fallback behavior in web_search can break the advertised “Atlas first, automatic fallback” flow. - Changes are largely additive and gated (host-only/sandbox checks), but the `web_search` Atlas try/catch can rethrow for users who explicitly configured provider=atlas when Atlas fails with a non-normalized error, leading to unexpected hard failures instead of fallback. - src/agents/tools/web-search.ts, src/agents/tools/browser-tool.ts <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->