#44: remove living doc layer

[miroslavpojer]

Overview

Deletes the living-doc part of this repository. It now lives in AbsaOSS/living-doc under agentic/, next to
the canon it writes, and ships from there: AbsaOSS/living-doc#53.

Complete removal — no pointer, no redirect, no stub folder. Anyone looking for these skills finds them in
living-doc's README.md and in its agentic/README.md.

Why now: two copies of the same skills existed, and this one reads canon references pinned to a living-doc
commit that has since moved on, so its copies are stale and would drift further with every canon change. A user
installing from here would get skills that disagree with the canon. #40 was closed rather than merged, so
master never received the canon alignment — what is here is the older state, with nothing to preserve.

Key Changes

• 104 files deleted. The nine living-doc skills, the three BDD skills the agent used
  (data-cy-instrument, gherkin-step, bdd-maintain), all of skills/shared/, the
  living-doc-bdd-copilot agent with its evals, the 13 guides for them, and
  .github/workflows/test-scripts.yml.
• 13 skills and 10 guides remain, and they are untouched.
• Six pages edited (+22 / −136 lines): the skill catalog, the docs index, the contributing examples, the
  getting-started walkthrough, and the two agent guides.

Why skills/shared/ goes whole

On master it held nothing but living-doc material: SKILL.md, lib/ (ac_tag.py, living_doc_id.py and
their two tests) and references/ (two canon copies plus three JSON schemas). Nothing outside the deleted
skills referenced shared/lib or shared/references — git grep -l -e shared/lib -e shared/references -- skills/ over the skills that stay returns nothing.

There was no canon sync script on master: scripts/sync-living-doc-reference.sh only ever existed on the
closed #40 branch, so the two canon copies here were hand-maintained and stale. They go with shared/.

Why the test workflow goes

test-scripts.yml has one job: it discovers skills/**/test_*.py and runs each file. After this deletion no
test_*.py file remains anywhere under skills/, so the job would pass on an empty set and report green. A
workflow that tests nothing is worse than no workflow. check-pr-requirements.yml is now the only workflow, and
it references no path under skills/.

What changed on the six pages

File	Change
README.md	12 catalog rows removed. The Agent Roster section is removed with them: living-doc-bdd-copilot was the only agent, so the section would have been a heading over an empty table. The FAQ entry explaining skills versus agents stays.
docs/README.md	The Agent Guides section and the Living Documentation & BDD Skills section with its three sub-sections are removed, along with their entries in Contents.
CONTRIBUTING.md	The shared-reference and shared-utility guidance stays; its examples no longer name deleted files. The shared-module convention — a thin wrapper per dependent skill, a README.md recording consumers — is now stated directly instead of by reference.
docs/getting-started.md	The Install Agents section is removed: it told readers to copy an agent file that no longer exists, and linked the removed Agent Roster anchor.
docs/guides/agent-design.md	Kept, re-illustrated. The mode-detail rule and the cooperating-agent boundary are now stated generically instead of through the living-doc agent.
docs/testing/agent-testing.md	Kept, re-illustrated. The good and bad description: examples use a release agent.

agent-design.md and agent-testing.md teach how to write any .agent.md and only illustrated the point
with the living-doc agent, so the guidance stays and the examples changed. .github/agents/ is now empty, which
matches the README's own scope statement: agents are something this repository may host, not something it ships
today.

Verification

$ git grep -il -e living-doc -e living_doc -e bdd-maintain -e gherkin-step -e data-cy-instrument -e bdd-copilot
(no matches)

$ ls skills | wc -l          # 13
$ ls docs/guides | wc -l     # 10
$ ls -A .github/agents       # gone
$ ls .github/workflows       # check-pr-requirements.yml
$ git ls-files skills/ | grep "test_.*\.py"
(no matches — which is why the test workflow is removed)

No relative link in any Markdown file is broken, and no workflow references a deleted path.

One check for the reviewer: three skills are missing from the README.md catalog —
create-issue, create-repository-workspace and python-standards. All three were already missing before this
change; this PR adds no fourth. The create-repository row was briefly lost while editing and has been restored
from master verbatim.

Related

Closes #44