put rest and sse to acceptance criteria. revise components. add system flows diagram

docs/02_components/01_flight_api/flight_api_spec.md

@@ -43,6 +43,10 @@ class IFlightAPI(ABC):
     @abstractmethod
     def create_sse_stream(self, flight_id: str) -> SSEStream:
         pass
+    
+    @abstractmethod
+    def convert_object_to_gps(self, flight_id: str, frame_id: int, pixel: Tuple[float, float]) -> ObjectGPSResponse:
+        pass
 ```
 
 ## Component Description
@@ -367,6 +371,50 @@ UserFixResponse:
 
 ---
 
+### `convert_object_to_gps(flight_id: str, frame_id: int, pixel: Tuple[float, float]) -> ObjectGPSResponse`
+
+**REST Endpoint**: `POST /flights/{flightId}/frames/{frameId}/object-to-gps`
+
+**Description**: Converts object pixel coordinates to GPS. Used by external object detection systems (e.g., Azaion.Inference) to get GPS coordinates for detected objects.
+
+**Called By**:
+- External object detection systems (Azaion.Inference)
+- Any system needing pixel-to-GPS conversion for a specific frame
+
+**Input**:
+```python
+ObjectToGPSRequest:
+    pixel_x: float  # X coordinate in image
+    pixel_y: float  # Y coordinate in image
+```
+
+**Output**:
+```python
+ObjectGPSResponse:
+    gps: GPSPoint
+    accuracy_meters: float  # Estimated accuracy
+    frame_id: int
+    pixel: Tuple[float, float]
+```
+
+**Processing Flow**:
+1. Validate flight_id and frame_id exist
+2. Validate frame has been processed (has pose in Factor Graph)
+3. Call F13.image_object_to_gps(pixel, frame_id)
+4. Return GPS with accuracy estimate
+
+**Error Conditions**:
+- `400 Bad Request`: Invalid pixel coordinates
+- `404 Not Found`: flight_id or frame_id not found
+- `409 Conflict`: Frame not yet processed (no pose available)
+
+**Test Cases**:
+1. **Valid conversion**: Object at (1024, 768) → returns GPS
+2. **Unprocessed frame**: Frame not in Factor Graph → returns 409
+3. **Invalid pixel**: Negative coordinates → returns 400
+
+---
+
 ### `get_flight_status(flight_id: str) -> FlightStatusResponse`
 
 **REST Endpoint**: `GET /flights/{flightId}/status`