chore: remove report

Signed-off-by: Jérôme Benoit <jerome.benoit@sap.com>

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-# Executive Summary Report
-
-## AI-Driven Development: OCPP 2.0 Implementation Productivity Analysis
-
-**Project**: SAP/e-mobility-charging-stations-simulator  
-**Developer**: jerome-benoit (50% FTE - consistent)  
-**AI Adoption**: September 2025
-
----
-
-## 📊 OCPP 2.0 Implementation Progress
-
-### Functional Coverage Comparison
-
-| Period                  | Commands Implemented | Coverage    | Time Invested |
-| ----------------------- | -------------------- | ----------- | ------------- |
-| **Pre-AI** (18+ months) | 5 commands           | 42%         | 50% FTE       |
-| **Post-AI** (2 months)  | +5 commands          | 83%         | 50% FTE       |
-| **Improvement**         | +100% output         | +98% growth | Same resource |
-
-**Visual Progress**: Coverage increased from 42% to 83% in 2 months with AI assistance
-
----
-
-## ⚡ Productivity Gains
-
-### Development Velocity
-
-| Metric                   | Pre-AI      | Post-AI     | Improvement         |
-| ------------------------ | ----------- | ----------- | ------------------- |
-| **Time per command**     | ~3.6 months | ~12 days    | **9x faster**       |
-| **Commands/month**       | 0.28        | 2.5         | **9x increase**     |
-| **Coverage growth rate** | 2.3%/month  | 20.5%/month | **9x acceleration** |
-
-### Key Implementations (September-November 2025)
-
-| Date       | Command                      | Implementation Method |
-| ---------- | ---------------------------- | --------------------- |
-| October 21 | GetBaseReport + NotifyReport | Copilot Agent         |
-| October 24 | GetVariables                 | Spec-driven           |
-| October 29 | SetVariables                 | Spec-driven           |
-| November 3 | RequestStartTransaction      | Spec-driven           |
-
-**Delivery cadence**: 1 major command every 7-10 days vs. 1 every 3+ months previously
-
----
-
-## 💰 Business Impact
-
-### Time-to-Market Acceleration
-
-| Capability                     | Traditional Estimate | AI-Assisted Actual | Acceleration |
-| ------------------------------ | -------------------- | ------------------ | ------------ |
-| Variables Management (Get/Set) | 4-6 months           | 5 days             | **24-36x**   |
-| Provisioning Stack (Full)      | 6-8 months           | 11 days            | **16-22x**   |
-| Overall OCPP 2.0 to 83%        | 24+ months           | 2 months           | **12x**      |
-
-### Value Delivered
-
-**Functional Capabilities Added:**
-
-- Complete device model reporting (GetBaseReport, NotifyReport)
-- Full variables management (GetVariables, SetVariables)
-- Remote transaction control (RequestStartTransaction)
-- Production-ready monitoring and provisioning
-
-**Market Advantage:**
-
-- 12+ months earlier market entry
-- Enhanced product competitiveness
-- Faster customer feature delivery
-
----
-
-## 🔧 AI Methodology
-
-### Development Stack
-
-| Component               | Purpose                 | Impact                        |
-| ----------------------- | ----------------------- | ----------------------------- |
-| **GitHub Copilot**      | Feature implementation  | Code generation from specs    |
-| **OpenCode + openspec** | Spec-driven development | Requirements → Implementation |
-| **Dependabot**          | Maintenance automation  | 88% time saved on updates     |
-
-### Process Transformation
-
-| Phase                      | Before AI      | After AI     |
-| -------------------------- | -------------- | ------------ |
-| **Specification Analysis** | Days           | Hours        |
-| **Implementation**         | Weeks          | Automated    |
-| **Testing**                | Week           | Hours        |
-| **Review**                 | Days           | Hours        |
-| **Total per command**      | **3-4 months** | **1-2 days** |
-
-**Time reduction**: 95% per feature
-
----
-
-## 📈 ROI Summary
-
-### Productivity Multiplication
-
-**Input**: 1 developer × 50% FTE (unchanged)  
-**Output**: 9x more features delivered  
-**Result**: Equivalent to 4.5 full-time developers
-
-### Cost Efficiency
-
-| Factor                  | Value               |
-| ----------------------- | ------------------- |
-| **Development speed**   | 9x increase         |
-| **Resource investment** | Unchanged (50% FTE) |
-| **Cost per feature**    | -90% reduction      |
-| **Time to market**      | 12+ months earlier  |
-
----
-
-## ✅ Conclusion
-
-### Proven Results
-
-| Achievement           | Metric                         |
-| --------------------- | ------------------------------ |
-| **Speed increase**    | 9x faster delivery             |
-| **Functional growth** | +98% coverage in 2 months      |
-| **Efficiency gain**   | 95% time reduction per feature |
-| **Market advantage**  | 12+ months acceleration        |
-
-### Strategic Recommendation
-
-AI-driven, specification-based development has demonstrated **quantifiable 9x productivity multiplication** with maintained quality. Methodology is production-ready for organizational scaling.
-
----
-
-**Evidence**: [GitHub Repository Activity](https://github.com/SAP/e-mobility-charging-stations-simulator)  
-**Methodology**: openspec + GitHub Copilot + OpenCode  
-**Period**: September 6 - November 6, 2025