Feat: Add jitterfactor to retry policy

[javier-aliaga]

Description

Please explain the changes you've made

Issue reference

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Please reference the issue this PR will close: #[issue number]

Checklist

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• Code compiles correctly
• Created/updated tests
• Extended the documentation

[Copilot]

Pull request overview

Adds support for a configurable retry “jitter factor” and wires it through workflow-to-durable retry policy conversion, enabling deterministic jittered backoff in the durable task executor to reduce retry synchronization (“thundering herd”).

Changes:

• Add jitterFactor to WorkflowTaskRetryPolicy and propagate it to durabletask RetryPolicy.
• Apply deterministic jitter to computed retry delays in TaskOrchestrationExecutor.
• Add unit tests for jitter factor validation/defaults and for maxRetryInterval propagation in workflow context.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
sdk-workflows/src/main/java/io/dapr/workflows/WorkflowTaskRetryPolicy.java	Adds jitterFactor field + builder setter; updates constructor signature to include jitter.
sdk-workflows/src/main/java/io/dapr/workflows/runtime/DefaultWorkflowContext.java	Propagates maxRetryInterval (when set) and jitterFactor into durable RetryPolicy.
sdk-workflows/src/test/java/io/dapr/workflows/DefaultWorkflowContextTest.java	Adds tests verifying maxRetryInterval propagation and default behavior.
sdk-workflows/src/test/java/io/dapr/workflows/WorkflowTaskRetryPolicyTest.java	Adds tests for jitter defaults, boundaries, null-constructor behavior, and chaining.
durabletask-client/src/main/java/io/dapr/durabletask/RetryPolicy.java	Adds jitterFactor field with setter/getter and validation.
durabletask-client/src/main/java/io/dapr/durabletask/TaskOrchestrationExecutor.java	Applies deterministic jitter reduction to retry delays during orchestration execution.
durabletask-client/src/test/java/io/dapr/durabletask/RetryPolicyTest.java	Adds tests for jitter defaults/range checks and documents deterministic jitter math.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.

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[Copilot]

Pull request overview

Copilot reviewed 7 out of 7 changed files in this pull request and generated 3 comments.

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[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.56%. Comparing base (a2877aa) to head (e4c3cb3).

Files with missing lines	Patch %	Lines
...ava/io/dapr/workflows/WorkflowTaskRetryPolicy.java	77.77%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1687      +/-   ##
============================================
+ Coverage     79.51%   79.56%   +0.04%     
- Complexity     2194     2195       +1     
============================================
  Files           237      237              
  Lines          6577     6587      +10     
  Branches        730      731       +1     
============================================
+ Hits           5230     5241      +11     
+ Misses          992      989       -3     
- Partials        355      357       +2     

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