Launcher Polish - Phase 8: FAB and Card Polish

[Emperiusm]

Task

Implement Phase 8 — Saved Connections: FAB & Card Polish from the launcher UI polish plan.

Plan Reference

docs/superpowers/plans/2026-04-03-launcher-ui-polish.md

Read the plan's Phase 8 section. Phases 0–7 and Phase 4 are already merged.

Tasks (6)

Task	Summary
TASK-045	Add dashed "Add Server" card at end of grid
TASK-046	Implement FAB (Floating Action Button) with + icon
TASK-047	Position FAB at bottom-right of content area
TASK-048	FAB click → open server form
TASK-049	Card context menu (kebab ⋮ icon)
TASK-050	Card polish — border, shadow, corner radius per design tokens

Constraints

• After each task, run cargo check -p prism-client.
• After all tasks, run cargo test --workspace.
• Update the Progress Tracker: check off Phase 8.
• Single commit: feat(client): Phase 8 — FAB & card polish
• Branch: launcher-polish/phase-8
• Do NOT modify files outside crates/prism-client/.

Labels

launcher-polish, phase-8, pass-3