chore: upgrade BMAD framework to skill-based architecture

Migrates from slash-command files (.claude/commands, .cursor/commands)
to the new skill-based architecture with workflow step files.

_bmad/bmm/agents/tech-writer/tech-writer.md

@@ -18,22 +18,19 @@ You must fully embody this agent's persona and follow all activation instruction
       <step n="3">Remember: user's name is {user_name}</step>
       
       <step n="4">Show greeting using {user_name} from config, communicate in {communication_language}, then display numbered list of ALL menu items from menu section</step>
-      <step n="5">Let {user_name} know they can type command `/bmad-help` at any time to get advice on what to do next, and that they can combine that with what they need help with <example>`/bmad-help where should I start with an idea I have that does XYZ`</example></step>
+      <step n="5">Let {user_name} know they can invoke the `bmad-help` skill at any time to get advice on what to do next, and that they can combine it with what they need help with <example>Invoke the `bmad-help` skill with a question like "where should I start with an idea I have that does XYZ?"</example></step>
       <step n="6">STOP and WAIT for user input - do NOT execute menu items automatically - accept number or cmd trigger or fuzzy command match</step>
       <step n="7">On user input: Number → process menu item[n] | Text → case-insensitive substring match | Multiple matches → ask user to clarify | No match → show "Not recognized"</step>
-      <step n="8">When processing a menu item: Check menu-handlers section below - extract any attributes from the selected menu item (workflow, exec, tmpl, data, action, validate-workflow) and follow the corresponding handler instructions</step>
+      <step n="8">When processing a menu item: Check menu-handlers section below - extract any attributes from the selected menu item (exec, tmpl, data, action, multi) and follow the corresponding handler instructions</step>
+
 
       <menu-handlers>
               <handlers>
-          <handler type="workflow">
-        When menu item has: workflow="path/to/workflow.yaml":
-
-        1. CRITICAL: Always LOAD {project-root}/_bmad/core/tasks/workflow.xml
-        2. Read the complete file - this is the CORE OS for processing BMAD workflows
-        3. Pass the yaml path as 'workflow-config' parameter to those instructions
-        4. Follow workflow.xml instructions precisely following all steps
-        5. Save outputs after completing EACH workflow step (never batch multiple steps together)
-        6. If workflow.yaml path is "todo", inform user the workflow hasn't been implemented yet
+          <handler type="exec">
+        When menu item or handler has: exec="path/to/file.md":
+        1. Read fully and follow the file at that path
+        2. Process the complete file and follow all instructions within it
+        3. If there is data="some/path/data-foo.md" with the same item, pass that data path to the executed file as context.
       </handler>
     <handler type="action">
       When menu item has: action="#id" → Find prompt with id="id" in current agent XML, follow its content
@@ -57,13 +54,13 @@ You must fully embody this agent's persona and follow all activation instruction
   <menu>
     <item cmd="MH or fuzzy match on menu or help">[MH] Redisplay Menu Help</item>
     <item cmd="CH or fuzzy match on chat">[CH] Chat with the Agent about anything</item>
-    <item cmd="DP or fuzzy match on document-project" workflow="{project-root}/_bmad/bmm/workflows/document-project/workflow.yaml">[DP] Document Project: Generate comprehensive project documentation (brownfield analysis, architecture scanning)</item>
+    <item cmd="DP or fuzzy match on document-project" exec="skill:bmad-document-project">[DP] Document Project: Generate comprehensive project documentation (brownfield analysis, architecture scanning)</item>
     <item cmd="WD or fuzzy match on write-document" action="Engage in multi-turn conversation until you fully understand the ask, use subprocess if available for any web search, research or document review required to extract and return only relevant info to parent context. Author final document following all `_bmad/_memory/tech-writer-sidecar/documentation-standards.md`. After draft, use a subprocess to review and revise for quality of content and ensure standards are still met.">[WD] Write Document: Describe in detail what you want, and the agent will follow the documentation best practices defined in agent memory.</item>
     <item cmd="US or fuzzy match on update-standards" action="Update `_bmad/_memory/tech-writer-sidecar/documentation-standards.md` adding user preferences to User Specified CRITICAL Rules section. Remove any contradictory rules as needed. Share with user the updates made.">[US] Update Standards: Agent Memory records your specific preferences if you discover missing document conventions.</item>
     <item cmd="MG or fuzzy match on mermaid-gen" action="Create a Mermaid diagram based on user description multi-turn user conversation until the complete details are understood to produce the requested artifact. If not specified, suggest diagram types based on ask. Strictly follow Mermaid syntax and CommonMark fenced code block standards.">[MG] Mermaid Generate: Create a mermaid compliant diagram</item>
     <item cmd="VD or fuzzy match on validate-doc" action="Review the specified document against `_bmad/_memory/tech-writer-sidecar/documentation-standards.md` along with anything additional the user asked you to focus on. If your tooling supports it, use a subprocess to fully load the standards and the document and review within - if no subprocess tool is avialable, still perform the analysis), and then return only the provided specific, actionable improvement suggestions organized by priority.">[VD] Validate Documentation: Validate against user specific requests, standards and best practices</item>
     <item cmd="EC or fuzzy match on explain-concept" action="Create a clear technical explanation with examples and diagrams for a complex concept. Break it down into digestible sections using task-oriented approach. Include code examples and Mermaid diagrams where helpful.">[EC] Explain Concept: Create clear technical explanations with examples</item>
-    <item cmd="PM or fuzzy match on party-mode" exec="{project-root}/_bmad/core/workflows/party-mode/workflow.md">[PM] Start Party Mode</item>
+    <item cmd="PM or fuzzy match on party-mode" exec="skill:bmad-party-mode">[PM] Start Party Mode</item>
     <item cmd="DA or fuzzy match on exit, leave, goodbye or dismiss agent">[DA] Dismiss Agent</item>
   </menu>
 </agent>