#13095: add Baidu Infoflow(More than 50,000 users) channel support #16153

add Baidu Infoflow channel support [Infoflow](https://infoflow.baidu.com) Greptile Overview Greptile Summary PR adds a new extensions/infoflow extension that implements a “Baidu Infoflow” channel. The change includes a plugin manifest (openclaw.plugin.json), TypeScript entrypoint (index.ts), and a set of runtime modules (src/*) for parsing incoming Infoflow requests, managing a bot/channel abstraction, dispatching replies, sending messages, and monitoring. This fits into the repo’s extension architecture by registering a new channel implementation packaged as its own extension with its own dependencies and build artifacts tracked in pnpm-lock.yaml. Confidence Score: 5/5 This PR appears safe to merge with minimal risk. Changes are additive (new extension) and don’t appear to modify shared core behavior outside adding dependency lock entries; review did not surface definite runtime-breaking issues that must be fixed before merge. No files require special attention <!-- greptile_comment -->