Changes to run queries(not changestreams) for data processing

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[kanwarujjaval]

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Pull Request Overview

This PR transitions from change stream-based data processing to query-based data processing for aggregation. It introduces new batch readers that process data in intervals rather than relying on real-time change streams for better performance and reliability.

• Replaces changeStreamReader with dataBatchReader for periodic data aggregation
• Updates aggregation plugins to use manual write batching instead of automatic batching
• Implements new query infrastructure for handling segmented event data retrieval

Reviewed Changes

Copilot reviewed 21 out of 24 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
test/3.api.write/5.write.app.events.js	Updates test validations to remove version/country metadata from expected results
plugins/times-of-day/api/aggregator.js	Converts from change streams to batch reading with timezone-aware processing
plugins/server-stats/api/aggregator.js	Migrates to batch processing and adds event type filtering
plugins/crashes/api/aggregator.js	Removes debug logging statements
api/parts/queries/events.js	Adds new segmented event data aggregation queries
api/parts/data/dataBatchReader.js	New batch reader implementation for interval-based processing
api/parts/data/batcher.js	Enhances write batcher with manual flush support
api/aggregator/processing.js	Core aggregation logic using new batch readers
api/aggregator.js	Restructures to use new query runner and manual batching

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