feat(integration): Complete feature rewrite with pipeline architecture, effects system, and display improvements

Major changes:
- Pipeline architecture with capability-based dependency resolution
- Effects plugin system with performance monitoring
- Display abstraction with multiple backends (terminal, null, websocket)
- Camera system for viewport scrolling
- Sensor framework for real-time input
- Command-and-control system via ntfy
- WebSocket display backend for browser clients
- Comprehensive test suite and documentation

Issue #48: ADR for preset scripting language included

This commit consolidates 110 individual commits into a single
feature integration that can be reviewed and tested before
further refinement.

engine/events.py

@@ -18,7 +18,6 @@ class EventType(Enum):
     NTFY_MESSAGE = auto()
     STREAM_START = auto()
     STREAM_END = auto()
-    FIGMENT_TRIGGER = auto()
 
 
 @dataclass
@@ -66,12 +65,3 @@ class StreamEvent:
     event_type: EventType
     headline_count: int = 0
     timestamp: datetime | None = None
-
-
-@dataclass
-class FigmentTriggerEvent:
-    """Event emitted when a figment is triggered."""
-
-    action: str
-    value: float | str | None = None
-    timestamp: datetime | None = None