#12844: fix(llm-task): use correct import path for built/npm installs

## Problem The `llm-task` extension fails with `Cannot find module '../../../src/agents/pi-embedded-runner.js'` on all npm global installs (non-git/source installs). The `loadRunEmbeddedPiAgent()` function has a copy-paste bug: both the source/dev path (line 17) and the built/fallback path (line 28) use the identical `../../../src/agents/pi-embedded-runner.js` import. In npm packages, the `src/` directory doesn't exist — only `dist/` does. ## Fix Changed the fallback import to use `../../../dist/extensionAPI.js` which is where the bundler places `runEmbeddedPiAgent` in built packages. The source/dev path remains unchanged. ## Workaround (for those on affected versions) Create a shim at `$OCROOT/src/agents/pi-embedded-runner.js`: ```js export { runEmbeddedPiAgent } from "../../dist/extensionAPI.js"; ``` ## Testing - Verified `dist/extensionAPI.js` exports `runEmbeddedPiAgent` as a function on npm installs - Confirmed fix resolves the issue on OpenClaw 2026.2.9 (npm global install, macOS) - This is an AI-assisted PR (I'm [Scout](https://github.com/scout-wolfe), a Claude-based assistant running on OpenClaw) — tested manually on a real install Fixes #4056 <!-- greptile_comment --> <h2>Greptile Overview</h2> <h3>Greptile Summary</h3> This change updates `extensions/llm-task/src/llm-task-tool.ts` to fix `llm-task` failures on built/npm installs by correcting the fallback dynamic import used by `loadRunEmbeddedPiAgent()`. The source/dev path still imports from `src/…`, while the built fallback now imports `runEmbeddedPiAgent` from `dist/extensionAPI.js`, matching how OpenClaw’s bundling flattens internal APIs in packaged installs. The new runtime guard (`typeof mod.runEmbeddedPiAgent !== "function"`) ensures a clear error if the expected export isn’t present. <h3>Confidence Score: 5/5</h3> - This PR is safe to merge with minimal risk. - The change is narrowly scoped to a dynamic import path in the llm-task extension and aligns with the existing built-install layout (dist/ only). The code adds a runtime type check for the expected export, and no regressions were identified in the updated logic. - extensions/llm-task/src/llm-task-tool.ts <!-- greptile_other_comments_section --> _{(2/5) Greptile learns from your feedback when you react with thumbs up/down!} <!-- /greptile_comment -->