test(cli): smoke-test help for every command - #184

Slice

• Repo: doberman-core
• Feature / Slice: tests: smoke-test --help for every Typer command and group #176 — Smoke-test --help for every Typer command and group
• Plan reference: Issue tests: smoke-test --help for every Typer command and group #176

What this PR does

• adds an explicit matrix for the root app and every public command and command group
• invokes each target with --help and verifies exit code 0, the complete usage path, and no traceback
• automatically requires every eager registration while documenting how dynamic commands stay synchronized
• preserves the existing startup guard against importing optional scientific and enterprise packages

Closes #176

Tests added (run in CI)

• pytest tests/unit/test_cli_help.py -q: 31 passed
• CLI-pattern unit suite: passed with 2 skipped
• ruff check .
• ruff format --check .
• lint-imports: 2 contracts kept, 0 broken
• pytest --cov=doberman --cov-report=term-missing --cov-fail-under=80: 2161 passed, 5 skipped; 91.97% coverage

Public-release safety (doberman-core only)

• Contains nothing from the "not allowed" list: no enterprise/hosted code, no proprietary detection, no customer data, no secrets, no commercial-license code
• Core still builds/tests/runs with NO enterprise package installed

Security checklist

• Fails closed on error / uncertainty (runtime behavior is unchanged)
• No secret, full file, or unredacted prompt logged or committed
• Any guardrail/learning change is raise-only (no guardrail or learning behavior changed)
• Every BLOCK/AUTH carries reason codes + a human explanation (not affected)
• doberman-core does not import doberman_enterprise

Edge cases covered / Deviations from plan / Risks introduced

• The matrix is intentionally explicit so dynamically discovered commands can be listed without invoking option callbacks, prompts, network access, or persistent state during discovery.
• The eager-registration guard rejects missing ordinary commands and duplicate matrix entries.
• Usage-path validation catches stale nested targets even when Click's eager --help handling exits successfully at a parent command.
• Whitespace normalization keeps wrapped Rich help output deterministic for long valid command paths.
• This is a test-only change; runtime behavior and public CLI text are unchanged.

AI assistance

AI assistance disclosure: This PR was developed with assistance from OpenAI Codex.