Teams list was fetched on every Sidebar mount (each page navigation),
causing a flash from '…' to the real name on every tab switch. Move teams
into a module-level reactive store (teams.svelte.ts) that fetches once per
session and is shared between Sidebar and the team page.
- Allow hyphens, @, and apostrophes in team names (backend regex)
- After delete/leave, switch to next available team instead of logging
out; if no teams remain, show a toast prompting to create one
- Disable delete/leave button when user has only one team, with
explanatory hint to create another team first
- Show empty state on /dashboard/team when auth has no team context,
pointing user to the sidebar to create a team
- Fetch all teams in parallel with team detail on page load to power
the isLastTeam guard
- New /dashboard/team page with inline team name editing, slug/ID copy,
members table with split-button (remove + make admin/member), add member
typeahead, and danger zone (delete/leave) with confirmation dialogs
- Sidebar now fetches real teams from API, supports team switching and
team creation via dialog
- Rename nav item Members → Team, route /dashboard/members → /dashboard/team
- New src/lib/api/team.ts with typed functions for all team endpoints
