[verified] Fix dashboard: real-data badge + sortable คะแนนรวม + modal calc steps
- badge now driven by /api/v1/dashboard availability (ข้อมูลจริงจากแหล่งไทย), not stale fixture summary (#request)
- factorValue handles 'combined' -> คะแนนรวม column now sorts + toggles asc/desc
- symbol modal shows full calculation: combined_formula, per-step calc (ธีม/พื้นฐาน + weights), z-score derivation with population mean/stdev/universe size
- panel-header layout fixes (full-width subtitle, header breathing room)
- Verified: badge real, sort 0.11->1.43, modal calc steps render
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