Automatically recognize contributions on Profiles

We should be able to automatically detect when contributors add/edit content, and create activity stream entries on their profiles.w.org page, and also assign the "training contributor" badge.

That would have the additional benefit of providing more info when reviewing Five for the Future pledges for accuracy.

The next step would be to translate the manual process into something that can be automated.

xref https://wordpress.slack.com/archives/C02RW657Q/p1618936797032100

Possible today

• Add Training Contributor badge to author of new Lesson Plan when the post is published. - https://wordpress.slack.com/archives/C02RW657Q/p1618943230072300
• Add Training Contributor badge to user once they've made five revisions to Lesson Plan that they were not the original author of - https://wordpress.slack.com/archives/C02RW657Q/p1618943418073500
• Add activity stream for new lesson plans and edits. Probably need to update is_post_notifiable(), maybe add UI for per-site selection - https://wordpress.slack.com/archives/C02RW657Q/p1618986971087200?thread_ts=1618944085.079800&cid=C02RW657Q

Has unfinished dependencies

• Add N/A option to editorial meta data - https://wordpress.slack.com/archives/C02RW657Q/p1618943716076200
• log name/date when change to editorial meta data https://wordpress.slack.com/archives/C02RW657Q/p1618943748076800
• Add Training Contributor badge to user once they've updated the editorial meta data for three Lesson Plans. The N/A option has to be added first - https://wordpress.slack.com/archives/C02RW657Q/p1618943673075300
• Create form for submitting Lesson Plans, defaults to pending status for review - https://wordpress.slack.com/archives/C02RW657Q/p1618943917077700
• Add Training Contributor badge once three lesson plans have been approved/published. Depends on form being created.

Start by reviewing the linked manual badge process and the possible-work note around is_post_notifiable(). Map the unfinished dependencies for editorial metadata, Lesson Plan submission, and approval before defining the automation scope. Done means the agreed contributor actions create the appropriate profile activity and badge entries without relying on the manual process.