[Feature]: Add workflow insight plugin

[wangyb-A]

What would you like?

Add workflow insight plugin, this will be the feature tracking issue.
JS reference: https://github.com/aws/aws-durable-execution-sdk-js/tree/main/packages/aws-durable-execution-sdk-js-insight

Possible Implementation

No response

Is this a breaking change?

No

Does this require an RFC?

No

Additional Context

No response

[wangyb-A]

#632

Initial PR.

[wangyb-A]

Things to be done other than the initial PR:

• Exporter support
  • CloudWatchLogsExporter
  • DynamoDBExporter
  • FirehoseExporter
  • EventBridgeExporter
  • SQSExporter
  • OTelExporter
  • HttpExporter
  • FileExporter
  • OpenSearchExporter
  • RedshiftExporter
  • AuroraExporter
• Asynchronous export scheduling and coalescing (link)
• Flush lifecycle for exporter (link link)
• Truncation performs quadratic rendering (Check if js has this issue as well before mark it donelink)
• JSON null value should also be serialized (link)
• Auto load plugin (link)

[wangyb-A]

Additional items from Pooya's review:

• Sampling configuration correctness and JS parity (link)
  • Handle NaN without silently disabling instrumentation
  • Choose consistent behavior for invalid dynamic values
• Cache the sampling decision in execution state (link)
• Use library logging instead of printing exporter failures to stderr (link)
• Keep S3 date partition layout uniform when startTime is missing or malformed (link)
• Add missing sampling and plugin safety tests (link)
  • FNV-1a JS parity vector and deterministic fractional sampling
  • Sampling validation and clamp paths
  • OperationOverride.exclude
  • Operation error inclusion
  • Exporter failure isolation
• Add truncation phase 3 coverage for droppedInput / droppedOutput (link)
• Complete Insight CI and local development wiring (link)
  • Add Insight to legal-file verification
  • Add a package-specific Hatch development environment
  • Add Insight to ci-checks.sh
• Skip on_operation_change work unless using on-change mode (link)
• Correct the PR/docs claim about export coalescing if implementation remains deferred (link)