Add pool hall camera GraphQL operations

Hand-written pool hall camera claim operations (schema.gql + index.tsx are
regenerated from the backend in the following commit).

src/operations/pool_hall.gql

@@ -0,0 +1,152 @@
+fragment PoolHallFields on PoolHall {
+  id
+  name
+  address
+  latitude
+  longitude
+  timezone
+  status
+  createdAt
+  updatedAt
+}
+
+fragment PoolHallCameraFields on PoolHallCamera {
+  id
+  poolHallId
+  name
+  tableLabel
+  streamPath
+  status
+  lastPublishedAt
+  lastUnpublishedAt
+  createdAt
+  updatedAt
+}
+
+fragment PoolHallCameraWithHallFields on PoolHallCamera {
+  ...PoolHallCameraFields
+  poolHall {
+    ...PoolHallFields
+  }
+}
+
+fragment PoolHallCameraStreamCredentialsFields on PoolHallCameraStreamCredentials {
+  streamKey
+  rtmpPath
+  camera {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+fragment CameraClaimSessionFields on CameraClaimSession {
+  id
+  cameraId
+  userId
+  challengeCode
+  status
+  expiresAt
+  detectedAt
+  failedAt
+  failureReason
+  createdAt
+  updatedAt
+  camera {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+fragment CameraLeaseFields on CameraLease {
+  id
+  cameraId
+  claimSessionId
+  userId
+  videoId
+  status
+  startedAt
+  endedAt
+  expiresAt
+  endReason
+  createdAt
+  updatedAt
+  camera {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+query GetPoolHalls {
+  poolHalls {
+    ...PoolHallFields
+  }
+}
+
+query GetClaimablePoolHalls {
+  claimablePoolHalls {
+    ...PoolHallFields
+  }
+}
+
+query GetPoolHallCameras($poolHallId: ID!) {
+  poolHallCameras(poolHallId: $poolHallId) {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+query GetClaimableCameras($poolHallId: ID!) {
+  claimableCameras(poolHallId: $poolHallId) {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+query GetCameraClaimSession($id: ID!) {
+  cameraClaimSession(id: $id) {
+    ...CameraClaimSessionFields
+  }
+}
+
+query GetActiveCameraLease {
+  activeCameraLease {
+    ...CameraLeaseFields
+  }
+}
+
+mutation CreatePoolHall($input: CreatePoolHallInput!) {
+  createPoolHall(input: $input) {
+    ...PoolHallFields
+  }
+}
+
+mutation UpdatePoolHall($input: UpdatePoolHallInput!) {
+  updatePoolHall(input: $input) {
+    ...PoolHallFields
+  }
+}
+
+mutation CreatePoolHallCamera($input: CreatePoolHallCameraInput!) {
+  createPoolHallCamera(input: $input) {
+    ...PoolHallCameraStreamCredentialsFields
+  }
+}
+
+mutation UpdatePoolHallCamera($input: UpdatePoolHallCameraInput!) {
+  updatePoolHallCamera(input: $input) {
+    ...PoolHallCameraWithHallFields
+  }
+}
+
+mutation RotatePoolHallCameraStreamKey($cameraId: ID!) {
+  rotatePoolHallCameraStreamKey(cameraId: $cameraId) {
+    ...PoolHallCameraStreamCredentialsFields
+  }
+}
+
+mutation CreateCameraClaimSession($cameraId: ID!) {
+  createCameraClaimSession(cameraId: $cameraId) {
+    ...CameraClaimSessionFields
+  }
+}
+
+mutation CancelCameraClaimSession($claimSessionId: ID!) {
+  cancelCameraClaimSession(claimSessionId: $claimSessionId) {
+    ...CameraClaimSessionFields
+  }
+}