feat(01-08): rewire app.py lifespan and deps.py to use build_pipeline

- app.py: replace inline component wiring with build_pipeline(env=cfg.env)
  - Store processor as app.state.processor (and backwards-compat pipeline_components)
  - RuntimeConfig replaces get_settings(); MAVLink stop() on shutdown
- deps.py: get_flight_processor prefers app.state.processor from lifespan
  - Falls back to build_pipeline() for test contexts without lifespan
  - Per-request repo/streamer swap preserved

src/gps_denied/app.py

@@ -7,70 +7,50 @@ from fastapi import FastAPI
 
 from gps_denied import __version__
 from gps_denied.api.routers import flights
-from gps_denied.config import get_settings
+from gps_denied.config import RuntimeConfig
+from gps_denied.pipeline import build_pipeline
 
 logger = logging.getLogger(__name__)
 
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
-    """Initialise core pipeline components on startup."""
-    from gps_denied.core.chunk_manager import RouteChunkManager
-    from gps_denied.core.coordinates import CoordinateTransformer
-    from gps_denied.core.gpr import GlobalPlaceRecognition
-    from gps_denied.core.graph import FactorGraphOptimizer
-    from gps_denied.core.mavlink import MAVLinkBridge
-    from gps_denied.core.metric import MetricRefinement
-    from gps_denied.core.models import ModelManager
-    from gps_denied.core.recovery import FailureRecoveryCoordinator
-    from gps_denied.core.rotation import ImageRotationManager
-    from gps_denied.core.satellite import SatelliteDataManager
-    from gps_denied.core.vo import create_vo_backend
-    from gps_denied.schemas.eskf import ESKFConfig
-    from gps_denied.schemas.graph import FactorGraphConfig
+    """Initialise core pipeline components on startup via build_pipeline."""
+    cfg = RuntimeConfig()
+    processor = build_pipeline(env=cfg.env, config=cfg)
 
-    settings = get_settings()
+    # Retrieve MAVLink bridge from processor internals for lifecycle management
+    mavlink = processor._mavlink
 
-    mm = ModelManager(engine_dir=str(settings.models.weights_dir))
-    vo = create_vo_backend(model_manager=mm)
-    gpr = GlobalPlaceRecognition(mm)
-    metric = MetricRefinement(mm)
-    graph = FactorGraphOptimizer(FactorGraphConfig())
-    chunk_mgr = RouteChunkManager(graph)
-    recovery = FailureRecoveryCoordinator(chunk_mgr, gpr, metric)
-    rotation = ImageRotationManager(mm)
-    coord = CoordinateTransformer()
-    satellite = SatelliteDataManager(tile_dir=settings.satellite.tile_dir)
-    mavlink = MAVLinkBridge(
-        connection_string=settings.mavlink.connection,
-        output_hz=settings.mavlink.output_hz,
-        telemetry_hz=settings.mavlink.telemetry_hz,
-    )
-
-    # ESKF config from env vars (per-airframe tuning)
-    eskf_config = ESKFConfig(**settings.eskf.model_dump())
-
-    # Store on app.state so deps can access them
+    app.state.processor = processor
+    app.state.config = cfg
+    # Keep backwards-compat key so any code reading pipeline_components still works
     app.state.pipeline_components = {
-        "vo": vo, "gpr": gpr, "metric": metric,
-        "graph": graph, "recovery": recovery,
-        "chunk_mgr": chunk_mgr, "rotation": rotation,
-        "coord": coord, "satellite": satellite,
+        "vo": processor._vo,
+        "gpr": processor._gpr,
+        "metric": processor._metric,
+        "graph": processor._graph,
+        "recovery": processor._recovery,
+        "chunk_mgr": processor._chunk_mgr,
+        "rotation": processor._rotation,
+        "coord": processor._coord,
+        "satellite": processor._satellite,
         "mavlink": mavlink,
     }
-    app.state.eskf_config = eskf_config
+    app.state.eskf_config = processor._eskf_config
 
     logger.info(
-        "Pipeline ready — MAVLink: %s, tiles: %s",
-        settings.mavlink.connection, settings.satellite.tile_dir,
+        "Pipeline ready — env=%s, MAVLink: %s, tiles: %s",
+        cfg.env, cfg.mavlink.connection, cfg.satellite.tile_dir,
     )
     yield
 
-    # Cleanup
-    try:
-        await mavlink.stop()
-    except Exception:
-        pass
+    # Cleanup MAVLink on shutdown
+    if mavlink is not None:
+        try:
+            await mavlink.stop()
+        except Exception:
+            pass
     app.state.pipeline_components = None