Guild Hub Overhaul

Neu

Show SGC cost + affordability + confirm modal in guild building upgrade UI

Neu

Make guild hub tabs proper deep-linkable URLs (reload/share lands on the tab)

Neu

Guilds nav dropdown for members (My Guild / All Guilds) + back-to-all-guilds link on show

Neu

Guild hub mobile polish: dropdown tab bar + drag-scroll hidden-scrollbar stat strip + tighter very-small layout

Neu

Guild hub: hide member-only tabs from non-members + standardize tab panels to rounded-box cards

Neu

Guild nav: My Guild row shows guild emblem + name (truncated) instead of generic label

Neu

Guild tab polish: 44px tap target, stale comments, dead research markup, fail-closed visibility default

Neu

Guild header polish v2: one-line name, action buttons in line with tag, endless stat marquee

Behoben

Fix guild chat tab height: empty room scrolls + composer overflows below

Behoben

Fix chat: empty conversation shows a scrollbar (shared thread CSS; guild page + dock)