chore(lint): enable A003, PLW0108 rules (zero-violation easy wins)

.ruff.toml

@@ -86,12 +86,10 @@ ignore = [
     "INP001",  # Dir 'examples' is part of an implicit namespace package. Add an __init__.py.
 
     # TODO: Consider re-enabling these before release:
-    "A003",    # Class attribute 'type' is shadowing a Python builtin
     "BLE001",  # Do not catch blind exception: Exception
     "ERA001",  # Remove commented-out code
     "FIX002",  # Allow "TODO:" until release (then switch to requiring links via TDO003)
     "PLW0603", # Using the global statement to update _cache is discouraged
-    "PLW0108", # Lambda may be unnecessary; consider inlining inner function
     "TRY003",  # Allow exceptions to receive strings in constructors.
     # "TD003", # Require links for TODOs (now enabled)
     "UP038",   # Allow tuples instead of "|" syntax in `isinstance()` checks ("|" is sometimes slower)