[Feature] Subjective feedback analytics

[shchukins]

Idea

Analyze subjective feedback patterns over time.

Questions

• Does high readiness correlate with lower RPE?
• Does poor sleep predict higher perceived exertion?
• Does fatigue_total predict next-day recovery?
• Are recommendations aligned with subjective outcomes?

Proposed solution

Add backend analytics queries and simple API endpoint.

Outputs

• feedback completeness
• RPE distribution
• readiness vs RPE table
• mismatch cases
• trend summaries

Value

medium-high