Ruff ignore list is too long

[tobixen]

From pyproject.toml ...

ignore = [
    "E501",    # Line too long (formatter handles this)
    "E402",    # Module level import not at top of file (common with conditional imports)
    "E721",    # Type comparisons (isinstance is not always better)
    "E722",    # Bare except (TODO: fix these gradually)
    "E731",    # Lambda assignments (sometimes clearer than def)
    "B007",    # Unused loop variable (often intentional)
    "B011",    # assert False (used as unreachable markers)
    "B018",    # Useless expression (often intentional in tests)
    "B026",    # Star-arg after keyword (legacy pattern)
    "B028",    # stacklevel in warnings (not critical)
    "B904",    # raise from (TODO: fix gradually)
    "F401",    # Unused imports (many are for re-export or conditional)
    "F403",    # Star imports (legacy, TODO: fix gradually)
    "F821",    # Undefined names (often in TYPE_CHECKING blocks or docstrings)
    "F841",    # Unused variables (often intentional, e.g. unpacking)
    "UP007",   # Optional[X] vs X | None (used in try/except for backwards compat)
    "UP008",   # super() style (existing code uses explicit form)
    "UP031",   # %-format (existing code uses it extensively)
    "UP036",   # Outdated version blocks (will clean up when dropping old Python)
    "UP045",   # X | None vs Optional (both are fine)
]

We should try to reduce this. A shame I forgot about it before the v3.0-release.