Tracking issue for hand crafted precompute engine

[zzylol]

• [Discussion] Requirements and design choices for a sketch-based streaming pre-compute #156
• Pre-compute engine pass raw data #121
• Demonstrating E2E performance after precomputation engine and storage engine are optimized #136
• Unit test of verifying the precompute output are the same for ArroyoSketch and hand-crafted precompute engine #184
• Benchmark the precompute engine accuracy of accumulators #185

[milindsrivastava1997]

Are any/all of these included in the above issues:

• Unit tests for individual operators (e.g. accumulators, sliding/tumbling windows, filters based on metric labels, etc)
• Source to support: File, Prometheus remote write, Otel
• Steps on "how to add a new sketch/accumulator"
• Removing hardcoded magic numbers from the code and exposing them as a config file

[zzylol]

• Unit tests for individual operators (e.g. accumulators, sliding/tumbling windows, filters based on metric labels, etc) -> Will add
• Source to support: File, Prometheus remote write, Otel -> This should be an independent issue/PR.
• Steps on "how to add a new sketch/accumulator" -> Will add this to a sub-issue of hand-crafted precompute engine.
• Removing hardcoded magic numbers from the code and exposing them as a config file -> Will add