migrate: consolidate all skills and agents from ~/clawd

- Moved 4 skills: browser-testing, claude-multimedia, exa-search, gravl-research
- Moved 14 agents: architect, backend-dev, browser-tester, coach, data, flight, frontend-dev, gravl-pm, gravl-researcher, nutritionist, research, reviewer, staging, update
- Created symlinks from ~/clawd/skills and ~/clawd/agents back to hub
- Single source of truth in claude-agents-skills repo

agents/gravl-pm/STATE.md

@@ -0,0 +1,21 @@
+# Gravl PM - State
+
+## Aktiv uppgift
+*Ingen aktiv uppgift*
+
+## Köade uppgifter
+*Se /workspace/gravl/TODO.md*
+
+## Tillgänglig Research
+| Rapport | Ämne | Status |
+|---------|------|--------|
+| 2026-02-28-fitness-ux-best-practices.md | UX best practices för fitness appar | ✅ Klar |
+
+## Pågående agenter
+| Agent | Uppgift | Startad | Status |
+|-------|---------|---------|--------|
+| - | - | - | - |
+
+## Senaste aktivitet
+- 2026-02-28: PM-agent skapad
+- 2026-02-28: UX-research färdig (fitness app best practices)