move agent builder docs, create workflow builder docs, and a new workflow builder to conform to stepwise workflow creation

src/modules/bmb/workflows-legacy/edit-module/workflow.yaml

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+# Edit Module - Module Editor Configuration
+name: "edit-module"
+description: "Edit existing BMAD modules (structure, agents, workflows, documentation) while following all best practices"
+author: "BMad"
+
+# Critical variables load from config_source
+config_source: "{project-root}/{bmad_folder}/bmb/config.yaml"
+communication_language: "{config_source}:communication_language"
+user_name: "{config_source}:user_name"
+
+# Required Data Files - Critical for understanding module conventions
+module_structure_guide: "{project-root}/{bmad_folder}/bmb/workflows/create-module/module-structure.md"
+
+# Related workflow editors
+agent_editor: "{project-root}/{bmad_folder}/bmb/workflows/edit-agent/workflow.yaml"
+workflow_editor: "{project-root}/{bmad_folder}/bmb/workflows/edit-workflow/workflow.yaml"
+
+# Reference examples - for learning patterns
+bmm_module_dir: "{project-root}/{bmad_folder}/bmm/"
+bmb_module_dir: "{project-root}/{bmad_folder}/bmb/"
+cis_module_dir: "{project-root}/{bmad_folder}/cis/"
+existing_agents_dir: "{project-root}/{bmad_folder}/*/agents/"
+existing_workflows_dir: "{project-root}/{bmad_folder}/*/workflows/"
+
+# Module path and component files
+installed_path: "{project-root}/{bmad_folder}/bmb/workflows/edit-module"
+template: false # This is an action workflow - no template needed
+instructions: "{installed_path}/instructions.md"
+validation: "{installed_path}/checklist.md"
+
+standalone: true
+
+# Web bundle configuration
+web_bundle: false # BMB workflows run locally in BMAD-METHOD project