fix(skill): rewrite quality-manager-qmr with QMR governance content (#82) (#158)

Replace placeholders with substantive QMR management review content:

- Delete placeholder files (example.py, api_reference.md, example_asset.txt)
- Create management-review-guide.md (~380 lines): ISO 13485 Clause 5.6
  requirements, required inputs/outputs, agenda templates, action tracking
- Create quality-kpi-framework.md (~300 lines): Core quality KPIs, customer
  KPIs, compliance KPIs, Cost of Quality categories, dashboard templates
- Create management_review_tracker.py (~580 lines): CLI tool for tracking
  review inputs, action items, metrics assessment with recommendations
- Rewrite SKILL.md from 210 to 489 lines with 12 triggers, TOC, 4 numbered
  workflows (Management Review, KPI Management, Quality Objectives, Quality
  Culture Assessment) with validation checkpoints, decision frameworks

Addresses benchmark feedback: score 58/100 due to placeholder files,
marketing language, missing trigger phrases, no actionable workflows.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

Author: alirezarezvani