chore(repo): baseline du fork input-remapper (upstream v2.2.1)

Le dépôt ne contenait que README.md ; ajout de l'intégralité du code
fonctionnel du fork comme socle stable de la branche de release.
L'état runtime d'orchestration (.ideai/) est exclu du suivi.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

inputremapper/injection/mapping_handlers/null_handler.py

@@ -0,0 +1,62 @@
+# -*- coding: utf-8 -*-
+# input-remapper - GUI for device specific keyboard mappings
+# Copyright (C) 2025 sezanzeb <b8x45ygc9@mozmail.com>
+#
+# This file is part of input-remapper.
+#
+# input-remapper is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# input-remapper is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with input-remapper.  If not, see <https://www.gnu.org/licenses/>.
+
+from typing import Dict, List
+
+import evdev
+
+from inputremapper.configs.input_config import InputCombination
+from inputremapper.injection.mapping_handlers.mapping_handler import (
+    HandlerEnums,
+    MappingHandler,
+)
+from inputremapper.input_event import InputEvent
+
+
+class NullHandler(MappingHandler):
+    """Handler which consumes the event and does nothing."""
+
+    def __str__(self):
+        return f"NullHandler for {self.mapping.input_combination}<{id(self)}>"
+
+    def get_children(self) -> List[MappingHandler]:
+        return []
+
+    def needs_wrapping(self) -> bool:
+        return False in [
+            input_.defines_analog_input for input_ in self.mapping.input_combination
+        ]
+
+    def wrap_with(self) -> Dict[InputCombination, HandlerEnums]:
+        if not self.mapping.input_combination.defines_analog_input:
+            return {self.mapping.input_combination: HandlerEnums.combination}
+
+        assert len(self.mapping.input_combination) > 1, "nees_wrapping ensures this!"
+        return {self.mapping.input_combination: HandlerEnums.axisswitch}
+
+    def notify(
+        self,
+        event: InputEvent,
+        source: evdev.InputDevice,
+        suppress: bool = False,
+    ) -> bool:
+        return True
+
+    def reset(self) -> None:
+        pass