Align CivicCore dependency with the published v1.2.1 release (DevHarmonics delivery)

[scottconverse]

DevHarmonics reviewed delivery

Base: main (a960bba)
Head: devharmonics/60e79db9 (91c0730)
Run: 60e79db9-fd02-44d9-b840-eef24b85d3db

This pull request is intentionally draft. DevHarmonics does not merge automatically.

[scottconverse]

Execution evidence for this change

This delivery was produced from source analysis, and the run that produced it
recorded plainly that "no fresh tests/scripts were executed, so validation claims
are source-defined or historical receipts only." It has now been executed.

The pin cannot move without this PR's test change, and that is provable.

civiccore 1.2.1 adds civiccore_0003_local_task_queue, which becomes the new
Alembic head. tests/test_milestone_2_schema_and_migrations.py:458 asserted the
old head, so on main the upgrade fails:

AssertionError: assert 'civiccore_0003_local_task_queue' == 'civiccore_0002_llm'
FAILED tests/test_milestone_2_schema_and_migrations.py::test_alembic_command_upgrades_real_pgvector_database

Measured in a clean venv (pip install -e ".[dev]"), with Docker available so the
real pgvector migration smoke actually runs:

Branch	civiccore	Result
main	1.2.0 (pinned)	225 passed, 1 skipped
main	1.2.1	1 failed — migration head assertion
this branch	1.2.1	225 passed, 1 skipped

The single remaining skip is unrelated (gemma3:12b not available from local Ollama).

The checksum is independently verified. The 8dde2940… sha256 in this PR
matches both the published SHA256SUMS.txt on the v1.2.1 release and a fresh
sha256sum of the downloaded wheel.

One thing worth knowing beyond this PR

Without Docker, both pins look identically green — 223 passed either way. The
test that catches cross-repository migration drift self-skips with "Docker CLI is
not available for the real pgvector migration smoke." That means a routine local
run cannot see this class of incompatibility at all, and neither can any CI job
without a Docker service. That is a gap worth closing separately from this PR.

🤖 Generated with Claude Code