[core] Fix platform subcomponents not filtering source files

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2026.1.0b1
+PROJECT_NUMBER         = 2026.2.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/components/debug/sensor.py

@@ -17,7 +17,11 @@ from esphome.const import (
     UNIT_PERCENT,
 )
 
-from . import CONF_DEBUG_ID, DebugComponent
+from . import (  # noqa: F401  pylint: disable=unused-import
+    CONF_DEBUG_ID,
+    FILTER_SOURCE_FILES,
+    DebugComponent,
+)
 
 DEPENDENCIES = ["debug"]
 

esphome/components/debug/text_sensor.py

@@ -8,7 +8,11 @@ from esphome.const import (
     ICON_RESTART,
 )
 
-from . import CONF_DEBUG_ID, DebugComponent
+from . import (  # noqa: F401  pylint: disable=unused-import
+    CONF_DEBUG_ID,
+    FILTER_SOURCE_FILES,
+    DebugComponent,
+)
 
 DEPENDENCIES = ["debug"]
 

esphome/components/nextion/display.py

@@ -11,7 +11,12 @@ from esphome.const import (
 )
 from esphome.core import CORE, TimePeriod
 
-from . import Nextion, nextion_ns, nextion_ref
+from . import (  # noqa: F401  pylint: disable=unused-import
+    FILTER_SOURCE_FILES,
+    Nextion,
+    nextion_ns,
+    nextion_ref,
+)
 from .base_component import (
     CONF_AUTO_WAKE_ON_TOUCH,
     CONF_COMMAND_SPACING,

esphome/components/remote_receiver/binary_sensor.py

@@ -1,5 +1,7 @@
 from esphome.components import binary_sensor, remote_base
 
+from . import FILTER_SOURCE_FILES  # noqa: F401  pylint: disable=unused-import
+
 DEPENDENCIES = ["remote_receiver"]
 
 CONFIG_SCHEMA = remote_base.validate_binary_sensor

esphome/const.py

@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2026.1.0b1"
+__version__ = "2026.2.0-dev"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (