Support any iterable when searching with the postgres adapter

[CorinChappy]

No description provided.

[Copilot]

Pull request overview

This PR expands Postgres search/filter support to accept non-list iterables (e.g., sets, tuples, iterators) for multi-valued filters, and refactors projection adapter tests to run against both in-memory and Postgres adapters via a shared harness.

Changes:

• Add iterable detection (is_multi_valued) and adjust Postgres query parameter handling to accept broader iterable inputs.
• Refactor projection adapter integration tests to use a harness pattern and add coverage for non-list iterables in IN filters.
• Simplify async DB pool management and migrate several async fixtures to @pytest.fixture (with asyncio_mode=auto).

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/unit/logicblocks/event/projection/store/adapters/test_memory.py	Removes the old unit-case wrapper for the in-memory projection adapter (now covered via harnessed integration tests).
tests/shared/logicblocks/event/testsupport/db.py	Updates connection pool lifecycle to use an async context manager.
tests/shared/logicblocks/event/testcases/projection/store/harnesses.py	Adds harness abstractions for projection store adapter tests (in-memory + Postgres).
tests/integration/logicblocks/event/store/adapters/test_postgres.py	Migrates async fixtures to @pytest.fixture.
tests/integration/logicblocks/event/projection/store/adapters/test_postgres.py	Removes older Postgres-only projection adapter case harness.
tests/integration/logicblocks/event/projection/store/adapters/test_adapters.py	Refactors to use the new harness fixture and adds non-list-iterable IN filter coverage.
tests/integration/logicblocks/event/projection/store/adapters/conftest.py	Introduces parametrized harness fixture wiring and shared Postgres pool setup.
tests/integration/logicblocks/event/processing/broker/strategies/distributed/test_broker.py	Migrates async fixtures to @pytest.fixture.
tests/integration/logicblocks/event/processing/broker/strategies/distributed/subscriptions/stores/state/test_postgres.py	Migrates async fixtures to @pytest.fixture.
tests/integration/logicblocks/event/processing/broker/strategies/distributed/subscribers/stores/state/test_postgres.py	Migrates async fixtures to @pytest.fixture.
tests/component/test_processing.py	Migrates async fixtures to @pytest.fixture.
tests/component/test_asynchronous_projections.py	Migrates async fixtures to @pytest.fixture.
src/logicblocks/event/persistence/postgres/types.py	Broadens parameter typing aliasing for query params.
src/logicblocks/event/persistence/postgres/query.py	Adjusts operand/parameter handling to support broader iterable inputs.
src/logicblocks/event/persistence/postgres/is_multi_valued.py	Adds helper used to detect multi-valued inputs.
src/logicblocks/event/persistence/postgres/converters/helpers.py	Removes the old multi-valued helper in favor of the shared implementation.
src/logicblocks/event/persistence/postgres/converters/clause.py	Switches to the shared is_multi_valued helper for filter value handling.