Release v0.8.0

Features

• add model details card component (cf5aa7b)
• add model details endpoint with desc and tags (4cdac70)
• lineage: add expand upstream lineage capability (ef89f35)
• make col relationship summary card collapsible (21a6135)
• ui: add glassmorphism effect and polish interactions (017b253)
• ui: enhance explorer tree with badges, node count and search highlight (f73d88b)
• ui: improve graph viz with better shaddow and hover states (636df01)

Bug Fixes

• lineage: align exposure edges horizontally with model edges (38fed02)
• return full upstream lineage chain in api, not only n-1 (0ece04a)