Clean up tasks template.

[intel352]

The tasks template has quite a bit of leftover instructions.
https://github.com/github/spec-kit/blob/main/templates/tasks-template.md
i.e. -

Phase 3.2: Tests First (TDD) ⚠️ MUST COMPLETE BEFORE 3.3
CRITICAL: These tests MUST be written and MUST FAIL before ANY implementation

 T004 [P] Contract test POST /api/users in tests/contract/test_users_post.py
 T005 [P] Contract test GET /api/users/{id} in tests/contract/test_users_get.py
 T006 [P] Integration test user registration in tests/integration/test_registration.py
 T007 [P] Integration test auth flow in tests/integration/test_auth.py

This file needs to be cleaned up to make it into a proper template file, and so it doesn't pollute actual task runs.

[MDfly7]

#9

[intel352]

#9

Cursor support is not relevant, I believe you linked the wrong issue.

[intel352]

In case it's not mentioned elsewhere, there's a hard reference to /commands/ rather than /.github/prompts/ in the constitution update checklist as well.

[localden]

Latest templates should be much cleaner, thank you for the feedback!

[mdcc7844-art]

#841