feat: traefik plugin scaffold (plugin.yaml, model, __init__ stub)

plugins/traefik/__init__.py

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+# plugins/traefik/__init__.py
+from __future__ import annotations
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from quart import Quart
+
+_app: "Quart | None" = None
+
+
+def setup(app: "Quart") -> None:
+    global _app
+    _app = app
+    # Import model to register with SQLAlchemy metadata
+    from plugins.traefik.models import TraefikMetric  # noqa: F401
+
+
+def get_scheduled_tasks() -> list:
+    from plugins.traefik.scheduler import make_scrape_task
+    return [make_scrape_task(_app)]
+
+
+def get_blueprint():
+    from plugins.traefik.routes import traefik_bp
+    return traefik_bp

plugins/traefik/models.py

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+# plugins/traefik/models.py
+from __future__ import annotations
+import uuid
+from datetime import datetime, timezone
+from sqlalchemy import DateTime, Float, String
+from sqlalchemy.orm import Mapped, mapped_column
+from fablednetmon.models.base import Base
+
+
+class TraefikMetric(Base):
+    __tablename__ = "traefik_metrics"
+
+    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
+    router_name: Mapped[str] = mapped_column(String(255), nullable=False)
+    scraped_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), nullable=False, default=lambda: datetime.now(timezone.utc)
+    )
+    request_rate: Mapped[float] = mapped_column(Float, nullable=False)
+    error_rate_4xx_pct: Mapped[float] = mapped_column(Float, nullable=False)
+    error_rate_5xx_pct: Mapped[float] = mapped_column(Float, nullable=False)
+    latency_p50_ms: Mapped[float] = mapped_column(Float, nullable=False)
+    latency_p95_ms: Mapped[float] = mapped_column(Float, nullable=False)
+    latency_p99_ms: Mapped[float] = mapped_column(Float, nullable=False)

plugins/traefik/plugin.yaml

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+# plugins/traefik/plugin.yaml
+name: traefik
+version: "1.0.0"
+description: "Traefik reverse proxy metrics integration"
+author: ""
+min_app_version: "0.1.0"
+
+config:
+  metrics_url: "http://localhost:8080/metrics"
+  scrape_interval_seconds: 60