refactor: separate installation and proximity context components

src/layers/awareness/state.js

@@ -0,0 +1,70 @@
+import * as Cesium from 'cesium';
+
+export function createState({ services }) {
+  const state = {};
+
+  state.DIRECTION_SCRATCH = Array.from(
+    { length: 3 },
+    () => new Cesium.Cartesian3(),
+  );
+
+  state.SUBJECT_CARTOGRAPHIC_SCRATCH = new Cesium.Cartographic();
+
+  state.TARGET_CARTOGRAPHIC_SCRATCH = Array.from(
+    { length: 3 },
+    () => new Cesium.Cartographic(),
+  );
+
+  Object.assign(state, {
+    viewer: null,
+    dataManager: null,
+    enabled: false,
+    // Set once a refresh observes the subject gone from a still-reporting source.
+    // The Contact readout turns this into its CONTACT LOST hold state.
+    subjectMissing: false,
+    // The dedicated Context chooser exposes a passive shell. Operational source
+    // layers activate only after Contacts is explicitly selected.
+    passive: true,
+    ownedDependencies: new Set(),
+    subject: null,
+    results: null,
+    visual: null,
+    panel: null,
+    panelOwned: false,
+    subjectListener: null,
+    contextListener: null,
+    clearListener: null,
+    subjectClearListener: null,
+    runtimeListenersAttached: false,
+    preRenderRemover: null,
+    panelClickListener: null,
+    directionRoot: null,
+    compassRing: null,
+    compassLabels: [],
+    compassHeading: null,
+    directionMarkers: [],
+    navigationHistory: [],
+    navigationVisited: new Set(),
+    navigationIndex: -1,
+    suppressedHistoryKey: null,
+    pendingSelectionKey: null,
+    lastSubjectRefreshMs: 0,
+    /** Camera-pose signature observed on the previous rendered frame. */
+    lastCameraPoseSig: '',
+    /** When the pose signature last changed bins (hysteresis anchor). */
+    lastCameraPoseChangeMs: 0,
+    /** Whether the view currently counts as moving (hysteretic, not per-frame). */
+    cameraMoving: false,
+    lastEvaluatedPosition: null,
+    sourceRevision: '',
+    panelMarkup: '',
+    directionFrame: null,
+    lastDirectionUpdateMs: 0,
+    activationId: 0,
+    autoFocusAttempted: false,
+    autoFocusRetryPending: false,
+    pageTimer: null,
+    cohortPages: new Map(),
+  });
+  return state;
+}