initial structure implemented

docs -> _docs

components/flight_processing_engine/__init__.py

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+from .base import FlightProcessingEngineBase
+from .flight_processing_engine import FlightProcessingEngine
+
+__all__ = ["FlightProcessingEngineBase", "FlightProcessingEngine"]
+

components/flight_processing_engine/base.py

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+from abc import ABC, abstractmethod
+from typing import Optional
+import numpy as np
+
+from models.images import ImageData
+from models.results import FrameResult
+from models.processing import RelativePose
+from models.recovery import UserAnchor
+
+
+class FlightProcessingEngineBase(ABC):
+    @abstractmethod
+    async def process_frame(
+        self, flight_id: str, image: ImageData
+    ) -> Optional[FrameResult]:
+        pass
+
+    @abstractmethod
+    async def get_relative_pose(
+        self, prev_image: np.ndarray, curr_image: np.ndarray
+    ) -> RelativePose:
+        pass
+
+    @abstractmethod
+    async def apply_user_anchor(
+        self, flight_id: str, frame_id: int, anchor: UserAnchor
+    ) -> bool:
+        pass
+
+    @abstractmethod
+    async def is_blocked(self, flight_id: str) -> bool:
+        pass
+
+    @abstractmethod
+    async def resume_processing(self, flight_id: str) -> bool:
+        pass
+
+    @abstractmethod
+    async def get_current_chunk_id(self, flight_id: str) -> Optional[str]:
+        pass
+

components/flight_processing_engine/flight_processing_engine.py

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+from typing import Optional
+import numpy as np
+
+from .base import FlightProcessingEngineBase
+from models.images import ImageData
+from models.results import FrameResult
+from models.processing import RelativePose
+from models.recovery import UserAnchor
+
+
+class FlightProcessingEngine(FlightProcessingEngineBase):
+    async def process_frame(
+        self, flight_id: str, image: ImageData
+    ) -> Optional[FrameResult]:
+        raise NotImplementedError
+
+    async def get_relative_pose(
+        self, prev_image: np.ndarray, curr_image: np.ndarray
+    ) -> RelativePose:
+        raise NotImplementedError
+
+    async def apply_user_anchor(
+        self, flight_id: str, frame_id: int, anchor: UserAnchor
+    ) -> bool:
+        raise NotImplementedError
+
+    async def is_blocked(self, flight_id: str) -> bool:
+        raise NotImplementedError
+
+    async def resume_processing(self, flight_id: str) -> bool:
+        raise NotImplementedError
+
+    async def get_current_chunk_id(self, flight_id: str) -> Optional[str]:
+        raise NotImplementedError
+