docs: strip flags exclude characters from tokenization, not the input

'Removes ... from the input' contradicted the spans-into-original
invariant: parse('John 😀 Smith').original keeps the emoji; the
tokenizer just never includes those characters in any token, so they
appear in no field or rendered view. Say that.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: derek73

docs/customize.rst

@@ -97,12 +97,13 @@ listed below.
        strict acronym form.
    * - ``strip_emoji``
      - ``bool``
-     - Removes emoji from the input before parsing. Defaults to
+     - Excludes emoji from tokenization — they appear in no field or
+       rendered view, though ``original`` keeps them. Defaults to
        ``True``.
    * - ``strip_bidi``
      - ``bool``
-     - Removes bidirectional control characters from the input before
-       parsing. Defaults to ``True``.
+     - Excludes bidirectional control characters the same way.
+       Defaults to ``True``.
 
 .. doctest::
 

nameparser/_policy.py

@@ -87,9 +87,12 @@ class Policy:
     #: Allows a post-comma segment to read as a suffix via the lenient
     #: initial-shaped test; False requires the strict acronym form.
     lenient_comma_suffixes: bool = True
-    #: Removes emoji from the input before parsing.
+    #: Excludes emoji from tokenization: they appear in no token,
+    #: field, or rendered view. The original string keeps them (input
+    #: is never modified -- spans stay true).
     strip_emoji: bool = True
-    #: Removes bidirectional control characters before parsing.
+    #: Excludes bidirectional control characters from tokenization the
+    #: same way.
     strip_bidi: bool = True  # =False replaces v1's opt-out CONSTANTS.regexes.bidi = False
 
     # in the class body so @dataclass(slots=True) keeps them