Multi-bridge Phase 2.4: Merged Home with per-bridge sections

[tashda]

Why

Home is the killer screen for multi-bridge users — they want an at-a-glance "everything" view across bridges, not just a switcher to toggle between two single-bridge dashboards.

What

Two layouts, user-selectable in Settings:

1. Merged (default):

   • One Devices card aggregating across bridges, with a small color-coded bridge badge per row.
   • One Logs card showing entries from all bridges, with bridge badge per row.
   • Per-bridge Bridge cards stacked (so each bridge's health/permit-join/etc. is still visible).

2. Per-bridge:

   • Side-by-side (iPad) or stacked (iPhone) sections, each a mini Home for one bridge.

Settings toggle: homeLayout: .merged | .perBridge, persisted to UserDefaults.

Every row anywhere shows a color-coded bridge badge (color assigned in Saved Bridges screen — see #2.9 for the picker).

Files

• Shellbee/Features/Home/HomeView.swift and the cards listed in Add CI, release workflow, and bump version to 1.1.0 #2.3.
• New: Shellbee/Shared/Components/BridgeBadge.swift.

Verification

• Both layouts render correctly with two bridges connected.
• Switching layouts in Settings is reactive — Home updates immediately.
• iPad: merged view uses a wider layout; per-bridge view uses side-by-side columns.

Phase

Phase 2 of multi-bridge support. Depends on #2.3.

[tashda]

Implemented in 7b32075 (Merged multi-bridge mode for Logs, Home, Groups) with aggregation coverage in 01e3087.