docs: add CompatCanary integration

[guvenemre]

What

Adds CompatCanary to the Automation & DevOps community integrations list. CompatCanary is an open-source CLI and GitHub Action that tests observed OpenAI-compatible API behavior, including streaming, tool calls, structured output, and Responses support.

Why

LocalAI users can run it against a LocalAI endpoint locally or in CI and attach reproducible JSON or Markdown evidence when investigating compatibility differences.

Testing

Documentation-only change; checked the Markdown diff and repository formatting.

[localai-bot]

Thanks for the addition. The entry matches the formatting of the surrounding integrations and the Automation & DevOps section is the right place for a compatibility-testing CLI/Action. The linked repo is live and matches the description. DCO is green and the branch is mergeable. @mudler this looks good to merge.

[localai-org-maint-bot]

I rebased this locally onto current master (6e52d0c2). The only conflict is the Automation & DevOps list in docs/content/integrations.md; the correct resolution is to retain master's current entries and add the CompatCanary line above Reflexia, using the surrounding plain - separator style.

The rebased result is still exactly one inserted line, git diff --check passes, the CompatCanary URL returns HTTP 200, and the contributor's original DCO sign-off remains intact. I attempted to push the rebased commit to CognizenOrg/LocalAI:docs/add-compatcanary-integration, but GitHub rejected localai-org-maint-bot with HTTP 403 despite maintainerCanModify being enabled.

@guvenemre, please rebase this branch onto current mudler/LocalAI:master and resolve the list as described above. Once pushed, CI can rerun and this can receive its final merge-ready callout.

[guvenemre]

Rebased onto current master (6e52d0c2) and resolved the integration-list conflict. The PR now contains only the CompatCanary entry using the current - formatting; DCO is green.

@mudler, this is ready for the required maintainer review.