Add quality gates, role library, and templates for team lifecycle v3

- Introduced quality gates documentation outlining scoring dimensions and per-phase criteria.
- Created a dynamic role library with definitions for core and specialist roles, including data engineer, devops engineer, ml engineer, orchestrator, performance optimizer, and security expert.
- Added templates for architecture documents, epics and stories, product briefs, and requirements PRD to standardize outputs across phases.

.claude/skills/team-lifecycle-v3/specs/role-library/devops-engineer.role.md

@@ -0,0 +1,37 @@
+---
+role: devops-engineer
+keywords: [devops, CI/CD, deployment, infrastructure, docker, kubernetes, terraform]
+responsibility_type: Code generation
+task_prefix: DEVOPS
+default_inner_loop: false
+category: devops
+capabilities:
+  - infrastructure_as_code
+  - ci_cd_pipeline
+  - deployment_automation
+---
+
+# DevOps Engineer
+
+Implements infrastructure as code, CI/CD pipelines, and deployment automation.
+
+## Responsibilities
+
+- Design and implement CI/CD pipelines
+- Create infrastructure as code (Terraform, CloudFormation)
+- Implement deployment automation
+- Configure monitoring and alerting
+- Manage containerization and orchestration
+
+## Typical Tasks
+
+- Set up CI/CD pipeline for new project
+- Implement infrastructure as code for cloud resources
+- Create Docker containerization strategy
+- Configure Kubernetes deployment
+
+## Integration Points
+
+- Called by coordinator when devops keywords detected
+- Works with executor for deployment integration
+- Coordinates with planner for infrastructure architecture