feat(activity): ✨ adding activity tags (UI, routes, persistence) #45

[dvorka]

This PR brings activity tags.

Related:

• [Enhancement] tags - CRUD + search #45

[Copilot]

Pull request overview

This PR introduces activity tags across the MyTraL stack: parsing + persistence on the backend, form handling/routes, and display/filtering in the UI. It also reuses the same CSV tag parsing logic for exercise type tags to keep tag input behavior consistent.

Changes:

• Added a shared utils.parse_tags_csv() helper and used it in activity + exercise-type tag handling.
• Extended activity create/update + list/search routes to store, filter, and search by tags.
• Updated templates to edit and render tags (badges) and added a tag filter on the year activity list; added tests covering parsing + persistence behavior.

Reviewed changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/test_activity_tags.py	New tests for tag CSV parsing, ActivityEntity tag round-trips, and dataset persistence/search predicates.
mytral/utils.py	Adds parse_tags_csv() helper for normalized tag parsing.
mytral/templates/macros/activity_list_table.html	Renders activity tags as badges in the list table (and links them when year is available).
mytral/templates/activity-update.html	Adds tags field to the activity update UI.
mytral/templates/activity-update-all.html	Adds tags field to the bulk update UI.
mytral/templates/activity-list-year.html	Adds tag filtering UI + renders tag badges in the year feed/list view.
mytral/templates/activity-get.html	Renders tags on activity detail page and links to year list filtered by tag.
mytral/templates/activity-create.html	Adds tags field to the activity create UI.
mytral/routes.py	Populates the tags form field on edit; adds tag filter in year list and tag matching in search.
mytral/forms.py	Adds tags field to activity form and persists tags via from_activity_form().
mytral/blueprints/exercise_types_crud.py	Reuses utils.parse_tags_csv() for exercise type tags to avoid duplicated parsing logic.