Merge branch 'main' into NLag/issue4

fix(rep-analysis): split exercise analyzers

Merge branch 'main' into NLag/issue4

Merge main into issue 4 branch

Add temporal router model selection

Implement exercise classifier router

Merge branch 'main' into issue-6-rep-analysis-variation

Surface rep metrics in the app

Detect exercise variations from rep metrics

Implement pose-derived rep metrics

feat(rep_counter): implement exercise-specific rep counters for push-ups, shoulder presses, and squats; add dependency on fastapi

feat(pose): add pluggable pose backends

fix(rep): ignore noisy extrema in squat cycle segmentation

fix(catalog): default auto exercise to squat

refactor(ui): clarify mocked downstream analysis

fix(renderer): prefer web-friendly video codecs

feat(pose): use dense frames for real pose extraction

fix(classifier): default auto routing to squat

feat(renderer): generate annotated pose videos

fix(rep): clamp mock analysis scores for long sets

feat(pipeline): persist rep debug artifacts

feat(rep): implement deterministic exercise rep segmentation

feat(rep): add shared signal and state machine utilities

refactor(exercises): centralize exercise definitions

feat(pose): add pluggable pose backends

feat(video): add intake quality gate

feat(pipeline): harden mock artifact contracts

first commit