fix: add missing skill manifests for research and PRD workflows (#1839)

These manifests were missed during the all-is-skills migration (#1834),
leaving 6 workflows undiscoverable by the native skills installer.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

Author: alexeyv

src/bmm/workflows/1-analysis/research/bmad-skill-manifest.yaml

@@ -0,0 +1,14 @@
+workflow-domain-research.md:
+  canonicalId: bmad-bmm-domain-research
+  type: workflow
+  description: "Conduct domain and industry research"
+
+workflow-market-research.md:
+  canonicalId: bmad-bmm-market-research
+  type: workflow
+  description: "Conduct market research on competition and customers"
+
+workflow-technical-research.md:
+  canonicalId: bmad-bmm-technical-research
+  type: workflow
+  description: "Conduct technical research on technologies and architecture"

src/bmm/workflows/2-plan-workflows/create-prd/bmad-skill-manifest.yaml

@@ -0,0 +1,14 @@
+workflow-create-prd.md:
+  canonicalId: bmad-bmm-create-prd
+  type: workflow
+  description: "Create a PRD from scratch"
+
+workflow-edit-prd.md:
+  canonicalId: bmad-bmm-edit-prd
+  type: workflow
+  description: "Edit an existing PRD"
+
+workflow-validate-prd.md:
+  canonicalId: bmad-bmm-validate-prd
+  type: workflow
+  description: "Validate a PRD against standards"