Rename picture-targets to output-targets across entire codebase

Rename all Python modules, classes, API endpoints, config keys, frontend
fetch URLs, and Home Assistant integration URLs from picture-targets to
output-targets. Store loads both new and legacy JSON keys for backward
compatibility with existing data files.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/wled_controller/api/schemas/__init__.py

@@ -30,11 +30,11 @@ from .color_strip_sources import (
     ColorStripSourceUpdate,
     CSSCalibrationTestRequest,
 )
-from .picture_targets import (
-    PictureTargetCreate,
-    PictureTargetListResponse,
-    PictureTargetResponse,
-    PictureTargetUpdate,
+from .output_targets import (
+    OutputTargetCreate,
+    OutputTargetListResponse,
+    OutputTargetResponse,
+    OutputTargetUpdate,
     TargetMetricsResponse,
     TargetProcessingState,
 )
@@ -100,10 +100,10 @@ __all__ = [
     "ColorStripSourceResponse",
     "ColorStripSourceUpdate",
     "CSSCalibrationTestRequest",
-    "PictureTargetCreate",
-    "PictureTargetListResponse",
-    "PictureTargetResponse",
-    "PictureTargetUpdate",
+    "OutputTargetCreate",
+    "OutputTargetListResponse",
+    "OutputTargetResponse",
+    "OutputTargetUpdate",
     "TargetMetricsResponse",
     "TargetProcessingState",
     "EngineInfo",

server/src/wled_controller/api/schemas/output_targets.py

@@ -1,4 +1,4 @@
-"""Picture target schemas (CRUD, processing state, metrics)."""
+"""Output target schemas (CRUD, processing state, metrics)."""
 
 from datetime import datetime
 from typing import Dict, Optional, List
@@ -46,8 +46,8 @@ class KeyColorsResponse(BaseModel):
     timestamp: Optional[datetime] = Field(None, description="Extraction timestamp")
 
 
-class PictureTargetCreate(BaseModel):
-    """Request to create a picture target."""
+class OutputTargetCreate(BaseModel):
+    """Request to create an output target."""
 
     name: str = Field(description="Target name", min_length=1, max_length=100)
     target_type: str = Field(default="led", description="Target type (led, key_colors)")
@@ -67,8 +67,8 @@ class PictureTargetCreate(BaseModel):
     description: Optional[str] = Field(None, description="Optional description", max_length=500)
 
 
-class PictureTargetUpdate(BaseModel):
-    """Request to update a picture target."""
+class OutputTargetUpdate(BaseModel):
+    """Request to update an output target."""
 
     name: Optional[str] = Field(None, description="Target name", min_length=1, max_length=100)
     # LED target fields
@@ -87,8 +87,8 @@ class PictureTargetUpdate(BaseModel):
     description: Optional[str] = Field(None, description="Optional description", max_length=500)
 
 
-class PictureTargetResponse(BaseModel):
-    """Picture target response."""
+class OutputTargetResponse(BaseModel):
+    """Output target response."""
 
     id: str = Field(description="Target ID")
     name: str = Field(description="Target name")
@@ -111,15 +111,15 @@ class PictureTargetResponse(BaseModel):
     updated_at: datetime = Field(description="Last update timestamp")
 
 
-class PictureTargetListResponse(BaseModel):
-    """List of picture targets response."""
+class OutputTargetListResponse(BaseModel):
+    """List of output targets response."""
 
-    targets: List[PictureTargetResponse] = Field(description="List of picture targets")
+    targets: List[OutputTargetResponse] = Field(description="List of output targets")
     count: int = Field(description="Number of targets")
 
 
 class TargetProcessingState(BaseModel):
-    """Processing state for a picture target."""
+    """Processing state for an output target."""
 
     target_id: str = Field(description="Target ID")
     device_id: Optional[str] = Field(None, description="Device ID")

server/src/wled_controller/api/schemas/pattern_templates.py

@@ -5,7 +5,7 @@ from typing import List, Optional
 
 from pydantic import BaseModel, Field
 
-from .picture_targets import KeyColorRectangleSchema
+from .output_targets import KeyColorRectangleSchema
 
 
 class PatternTemplateCreate(BaseModel):