[19.0][MIG] social_media_*: Migration to 19.0

[idris-domatix]

Forward-port of the social media management modules to Odoo 19.0, from the 17.0 PR #1622.

Modules:

• social_media_base: common framework for social media management
• social_media_x: X (Twitter) connector
• social_media_linkedin: LinkedIn connector (posts, likes, comments, campaign groups, campaigns, ads)
• social_media_calendar: calendar view of posts

Validation:

• Modules install cleanly on 19.0 (community-only)
• Existing tests pass (283 tests)
• pre-commit passes
• Reviewed by a maintainer

[jelenapoblet]

Hi @idris-domatix , just a heads-up since you're currently migrating to v19: we're making some changes to the social_media architecture.

The code is currently under review and should be merged soon, so you may want to take these changes into account before going too far with the migration.

[idris-domatix]

Thanks for the heads-up @jelenapoblet!

I see the 17.0 architecture is being reorganized (advertising split into social_media_advertising, the social_media_facebook connector, utm_medium/link_tracker, hooks.py, exceptions.py, etc.) and there are already 19.0 migration PRs (#1789, #1790, #1791, #1792).

I'll close this PR to avoid duplication and rebase my work on the new architecture once the 17.0 PRs are merged. Thanks for the info!

[jelenapoblet]

Please feel free to test and review the changes if you have some time. Any feedback or reviews will help us accelerate the merging process.
I've reviewed both the architecture and its usability with our marketing team, and it's looking very promising. I think this can become a great tool and a valuable addition to the OCA community.