docs: comprehensive functional concept analysis
Analysis Results:
- 84 new placeholders needed from Fachkonzept
- Issues #26 & #27 too narrow (complementary, not conflicting)
- Recommend 4-phase approach: Placeholders → Charts → Rules → KI
- Transform: Data Collector → Active Coach
Key Findings:
- Fachkonzept defines 3 levels (Deskriptiv, Diagnostisch, Präskriptiv)
- 18 dedicated charts (K1-K5, E1-E5, A1-A8, C1-C6)
- Goal-mode dependent interpretation
- Lag-based correlations mandatory
- Confidence & data quality essential
Recommended Actions:
- Create Issues #52-55 (Baseline, Scores, Correlations, Metrics)
- Expand #26 & #27 based on Fachkonzept
- Start Phase 0: Implement 84 placeholders
File: docs/KONZEPT_ANALYSE_2026-03-26.md (385 lines)