[TMHSDigital]

Fixes #47.

Floors. Each floor in pyproject is now the oldest release the whole suite passes on, found by bisecting PyPI and confirmed with a lowest-direct lock:

package	was	now	why
scipy	>=1.14	>=1.14.1	1.14.0 has no Python 3.13 wheel
typer	>=0.15	>=0.16	0.15 breaks against click 8.2
typesafe-sdk	>=0.1	>=0.5.7,<0.8	older releases lack the client the adapter uses
anthropic	>=0.40	>=0.77,<2	older releases lack OutputConfigParam
httpx	>=0.28	removed	nothing imports it

The dev group gains click>=8.2, which the CLI tests need to read stderr apart from stdout.

CI. A new job, "the oldest dependencies pyproject allows", runs uv lock --resolution lowest-direct, then uv sync --frozen, then pytest on Python 3.12. It has to lock first: uv sync --resolution keeps an existing lockfile that already satisfies pyproject, so on its own it quietly installs the newest releases.

Lazy adapters. Until now the registry imported all four adapters at startup, so a broken anthropic install stopped the mock from working too. Now:

• Built-ins register by module and class, and each one is imported on its first create.
• A failed import raises PlumblineError, naming both the adapter and the missing module.
• available() lists every adapter without importing any of them.
• plumbline.adapters loads its adapter classes on first access.

A new test runs a subprocess with anthropic blocked. In it the mock still works, and generative fails with a one-line error.

Checks: ruff, format, mypy --strict and pytest all pass on the locked versions, and pytest passes on the lowest resolution (numpy 2.1.0, scipy 1.14.1, typer 0.16.0, click 8.2.0, typesafe-sdk 0.5.7, anthropic 0.77.0, pytest 8.3.0).

🤖 Generated with Claude Code