43589 Split GET /templates/titles API into two separ…

[pneumojoseph]

…ate APIs

[macroscopeapp]

Split GET /templates/titles into /templates/titles-by-workflows, /templates/titles-by-tasks, and /templates/titles-by-events, add status filtering for workflows and tasks, and return count ordered by count DESC then template name ASC across Template titles endpoints

Introduce separate endpoints and serializers for workflows, tasks, and events; add task status branching in TemplateTitlesByTasksQuery, simplify workflow counting in TemplateTitlesByWorkflowsQuery, rename events query, and switch response field to count. Update view actions and permissions in template.py and adjust tests.

📍Where to Start

Start with the view actions TemplateViewSet.titles_by_workflows, TemplateViewSet.titles_by_tasks, and TemplateViewSet.titles_by_events in template.py.

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Macroscope summarized d6d2287.