chore(agents): cleanup skill manifests and remove shared manifest (#2035)

Update per-agent bmad-skill-manifest.yaml files and remove the
now-redundant shared bmad-skill-manifest.yaml after capabilities
were inlined into SKILL.md.

src/bmm/agents/bmad-agent-analyst/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-analyst
 displayName: Mary
 title: Business Analyst

src/bmm/agents/bmad-agent-architect/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-architect
 displayName: Winston
 title: Architect

src/bmm/agents/bmad-agent-dev/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-dev
 displayName: Amelia
 title: Developer Agent

src/bmm/agents/bmad-agent-pm/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-pm
 displayName: John
 title: Product Manager

src/bmm/agents/bmad-agent-qa/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-qa
 displayName: Quinn
 title: QA Engineer

src/bmm/agents/bmad-agent-quick-flow-solo-dev/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-quick-flow-solo-dev
 displayName: Barry
 title: Quick Flow Solo Dev

src/bmm/agents/bmad-agent-sm/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-sm
 displayName: Bob
 title: Scrum Master

src/bmm/agents/bmad-agent-tech-writer/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-tech-writer
 displayName: Paige
 title: Technical Writer

src/bmm/agents/bmad-agent-ux-designer/bmad-skill-manifest.yaml

@@ -1,4 +1,4 @@
-type: agent
+type: skill
 name: bmad-agent-ux-designer
 displayName: Sally
 title: UX Designer

src/bmm/agents/bmad-skill-manifest.yaml

@@ -1,39 +0,0 @@
-analyst.agent.yaml:
-  canonicalId: bmad-analyst
-  type: agent
-  description: "Business Analyst for market research, competitive analysis, and requirements elicitation"
-
-architect.agent.yaml:
-  canonicalId: bmad-architect
-  type: agent
-  description: "Architect for distributed systems, cloud infrastructure, and API design"
-
-dev.agent.yaml:
-  canonicalId: bmad-dev
-  type: agent
-  description: "Developer Agent for story execution, test-driven development, and code implementation"
-
-pm.agent.yaml:
-  canonicalId: bmad-pm
-  type: agent
-  description: "Product Manager for PRD creation, requirements discovery, and stakeholder alignment"
-
-qa.agent.yaml:
-  canonicalId: bmad-qa
-  type: agent
-  description: "QA Engineer for test automation, API testing, and E2E testing"
-
-quick-flow-solo-dev.agent.yaml:
-  canonicalId: bmad-quick-flow-solo-dev
-  type: agent
-  description: "Quick Flow Solo Dev for rapid spec creation and lean implementation"
-
-sm.agent.yaml:
-  canonicalId: bmad-sm
-  type: agent
-  description: "Scrum Master for sprint planning, story preparation, and agile ceremonies"
-
-ux-designer.agent.yaml:
-  canonicalId: bmad-ux-designer
-  type: agent
-  description: "UX Designer for user research, interaction design, and UI patterns"