feat: add set action to recipe

ProblemStatement: As an automation engineer I want to set various fields of a resource from one or more resources. I want to set them on various conditions.

kind: Recipe
spec:
  tasks:
  - name:
    set:
      target:
        apiVersion:
        kind:
        name:
        namespace:
      withLabel:
        keys:
        - abc.io/name
        when:
      withAnnotation:
        keys:
        - abc.io/name
        when:
      withValue:
        items:
        - targetPath:
          sourcePath:
          default:
        when:
      fromSource:
        apiVersion:
        kind:
        name:
        namespace:
        when:

• Read above schema as:
  • Set target resource with values, labels &/or annotations from source resource
• Does this call for implementation of unset action as well?
• Need to design setAll & bulkSet actions as well

Start by reviewing the Recipe task schema in the issue and locating the existing action handling for recipes. Clarify the scope and semantics of set, conditional label and annotation updates, value mapping, and source copying before deciding whether unset, setAll, and bulkSet belong in this work. Done should include an agreed design and implementation plan, with tests covering the defined behavior.