feat(backend): enhance inference pipeline with GLM logic and structured outputs

Add diagnostic logging to pinpoint tracker dropping detections

Fix Grounding DINO detections dropped by ByteTracker threshold mismatch

Refactor ByteTracker: add min_hits confirmation, split thresholds, associate unconfirmed tracks

Tune ByteTracker: lower track_thresh to 0.3, increase track_buffer to 60

Update overlays, tracker, GPT reasoning, and threat chat improvements

feat: Add mission-driven object relevance abstractions

fix: Remove chat emojis, improve tracker GPT metadata sync

Fix: IndexError in ByteTracker

feat: replace SimpleTracker with ByteTrack