docs(adr): compress to 2 records in the domain-modeling format

[lesnik512]

Rewrites docs/adr/ from 2 records (505 words) to 2 (316 words), one paragraph each, in the shape
ADR-FORMAT.md asks for. Both records survive the admission test, so nothing is dropped or merged
and the numbering is unchanged. The **Decision:** lead-in and the **Revisit trigger:** block go
away; each trigger is folded into its paragraph, because in both cases it is the real boundary of
the decision rather than a bookkeeping note.

Evaluation

Each record was tested against the admission test: hard to reverse, surprising without context, the
result of a real trade-off.

Old	Outcome	New	Reason
0001 caller owns the root container's lifecycle	kept	0001	A public ownership contract that is expensive to move later, and it deviates from what every ASGI sibling does, so a reader will ask why.
0002 inject does not rewrite the view's signature	kept	0002	modern-di-celery and modern-di-aiogram do the rewrite, so this is exactly the deliberate deviation someone would port over as a fix.

Citations

None moved. The only citation in the repo is the ADR-0001 example in docs/agents/domain.md, plus
the two filenames in that file's directory tree; both numbers and both slugs are unchanged, so they
still resolve. The repo-wide sweep for adr/NNNN and ADR-NNNN finds no old or dropped number.

Stale claims

None. Every concrete claim was checked against the current tree and all still hold: setup_di does
not open, validate, or close the container it is handed; fetch_di_container and
flask_request_provider exist under those names in modern_di_flask/main.py; Container.validate
exists in the pinned modern-di (3.4.0, range >=3.1,<4); the supported Flask range is still
flask>=3,<4; and the wrapper still carries functools.wraps with *args, **kwargs and no
__signature__. The invariant test named by the old 0002,
test_inject_preserves_the_view_name_flask_derives_endpoints_from, is still in tests/test_inject.py;
the new paragraph keeps the __name__ rationale but drops the pointer to the test, which the test
name already carries.

Gates

• pytest -q tests/test_adr_citations.py: 7 passed.
• pytest -q (full suite): 22 passed. No directories needed external services, so none were skipped.
• eof-fixer . --check: clean.
• lychee --offline --no-progress over both ADRs, CONTEXT.md and AGENTS.md: 2 OK, 0 errors.
• ruff format --check / ruff check --no-fix: skipped, no Python file is touched by this change.