[F2-TASK-158] Create tier-2 auth and permission playbooks

[duksh]

Execution Metadata

• Issue ID: F2-TASK-158
• Phase: P13
• Type: TASK
• Owner Team: security-team
• Priority: P1
• Status (initial): Todo
• Depends On: F2-STORY-156

Acceptance Criteria

Provider-specific auth playbooks documented

Artifact Paths

• docs/provider-sdk-integration-strategy.md

Quality Gates

• security-sbom

Labels (from registry)

auth,tier2

Source Registry

• docs/roadmap/ficecal-v2-task-issue-registry.csv
• docs/roadmap/ficecal-v2-execution-plan-updated.md
• docs/roadmap/ficecal-v2-recovery-index.md