docs.yml references retired dev-docs image

[wphillipmoore]

Bug

The docs.yml workflow references ghcr.io/wphillipmoore/dev-docs:latest which no longer exists. The docs tooling was consolidated into the language-specific dev images; the separate dev-docs image was retired.

Impact

Documentation workflow fails on every push to develop. Docs themselves are up to date — only the publish mechanism is broken.

Fix

Update docs.yml to use the current docs publishing approach (see ai-research-methodology or standard-tooling for working examples).

[wphillipmoore]

Completed in PR #472 (commit 9ed4daa) — docs.yml updated to use dev-base image.