feat: live tracker suite - WIKITOOL_TASKS_CONFIG override, real-tracker tests for Super Productivity and CalDAV, nightly workflow and test image (#156)

Files changed:
- .gitea/scripts/start-radicale.sh
- .gitea/sp-live/Dockerfile
- .gitea/sp-live/resolve-version.sh
- .gitea/workflows/ci.yml
- .gitea/workflows/sp-live-image.yml
- .gitea/workflows/tracker-live.yml
- .gitignore
- CHANGES.md
- DEVELOPMENT.md
- INSTALL.md
- VERSION
- instructions/dev/doc-pull-through.md
- instructions/dev/stack-dev/SKILL.md
- instructions/dev/testing-conventions.md
- instructions/dev/tracker-testing.md
- kb/gtd/INDEX.md
- kb/gtd/technik/Chemenu 8.0.0 freigeben.md
- kb/gtd/technik/Windows nativ unterstützen.md
- kb/index.md
- tools/CONTRACT.md
- tools/chemenu/commands/docs_verify.py
- tools/chemenu/commands/doctor.py
- tools/chemenu/commands/review_cmd.py
- tools/chemenu/commands/task_cmd.py
- tools/chemenu/config.py
- tools/chemenu/tasks/config.py
- tools/chemenu/tests/conftest.py
- tools/chemenu/tests/fixtures/sp/MANIFEST.json
- tools/chemenu/tests/fixtures/sp/api/health.json
- tools/chemenu/tests/fixtures/sp/api/projects.json
- tools/chemenu/tests/fixtures/sp/api/tags.json
- tools/chemenu/tests/fixtures/sp/api/tasks.json
- tools/chemenu/tests/fixtures/sp/seed-backup.json
- tools/chemenu/tests/record_sp_fixtures.py
- tools/chemenu/tests/sp_headless.py
- tools/chemenu/tests/test_doctor.py
- tools/chemenu/tests/test_review.py
- tools/chemenu/tests/test_sp_recorded.py
- tools/chemenu/tests/test_task_cmd.py
- tools/chemenu/tests/test_tasks_config.py
- tools/chemenu/tests/test_tracker_live.py
- tools/chemenu/tests/tracker_live.py
- tools/pytest.ini

.gitignore

@@ -141,6 +141,13 @@ npm-debug.log*
 # configured; `doctor` reports which.
 /.wikitool-tasks.json
 
+# Live-suite tracker profiles (Gitea #156): one file per tracker of the user's own that the
+# live suite may be pointed at (`CHEMENU_LIVE_PROFILE=<name>`,
+# instructions/dev/tracker-testing.md). They carry the same credentials as the file above
+# and are per-checkout for the same reason. A directory pattern, anchored: nothing in it is
+# ever tracked, so no negation has to rescue anything.
+/.wikitool-tasks.d/
+
 # Coverage output from `pytest --cov` (see .gitea/workflows/ci.yml). Derived,
 # like reports/: recomputable from any commit, and `publish` runs `git add -A`,
 # so an unignored htmlcov/ would commit itself on the next content publish.