feat: Session Replay improvements

[abelonogov-ld]

• Pause snapshotting if buffer is overflowed
• Allow snapshotting during user interaction
• Internal FPS counters
• Code sugar
• Add logging in parts of Session Player

---

Note

Adds buffer-aware screenshot capture with player wake-up events and optional SR stats, refactors event queue API and batch worker (logging + adaptive pacing), and enhances HTTP error descriptions.

• Session Replay:
  • Event generation: Introduces wake-up payloads (generateWakeUpEvents), applies consistent padding to interactions, and rebuilds full snapshot sizing via paddedWidth/Height.
  • ExportImage: Optimizes equality with dataHashValue; properties now immutable.
  • Snapshotting: SnapshotTaker checks EventQueue.isFull() before capturing; uses eventQueue.send(_ payload) and @MainActor capture.
  • Stats: Adds SessionReplayStats for periodic image/FPS logging (debug-only path).
• Transport/Queue:
  • EventQueue: API change to send(_ payload: EventQueueItemPayload); adds isFull(); internal fields privatized.
  • BatchWorker: Accepts OSLog, logs export errors via os_log, and uses adaptive sleep with a minimum interval.
• Observability:
  • Updates to use new EventQueue.send across log/memory/lifecycle/user-interaction producers; BatchWorker now initialized with options.log.
• Networking:
  • NetworkError.httpStatus description now includes optional response body data.

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[cursor]

Bug: Dequeue Cost Mismatch

In the dequeue method, when the limit or cost threshold is reached, only the cost of the last item is subtracted from currentSize, but i+1 items (all accumulated items) are removed from storage. This causes currentSize to become incorrect. The line currentSize -= item.cost should subtract the sum of costs of all i+1 items being removed, not just the last one.