Julian Pawlowski b46f8a2d28 docs(periods): fix corrupted period-calculation.md and add outlier filtering documentation ... Completely rewrote period-calculation.md after severe corruption (massive text duplication throughout the file made it 2489 lines). Changes: - Fixed formatting: Removed all duplicate text and headers - Reduced file size: 2594 lines down to 516 lines (clean, readable structure) - Added section 5: "Statistical Outlier Filtering (NEW)" explaining: - Linear regression-based spike detection (95% confidence intervals) - Symmetry checking to preserve legitimate price shifts - Enhanced zigzag detection with relative volatility - Data integrity guarantees (original prices always used) - New period attributes: period_interval_smoothed_count - Added troubleshooting: "Price spikes breaking periods" section - Added technical details: Algorithm constants and implementation notes Impact: Users can now understand how outlier filtering prevents isolated price spikes from breaking continuous periods. Documentation is readable again with no duplicate content.		2025-11-12 16:59:07 +00:00
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development	fix(docs): correct link formatting for AGENTS.md in coding guidelines	2025-11-10 14:12:01 +00:00
user	docs(periods): fix corrupted period-calculation.md and add outlier filtering documentation	2025-11-12 16:59:07 +00:00