#0075 Team editor: Agents tab dropdown add/remove

[rjdjohnston]

Implements the #0075 spec for Team editor → Agents tab:

• Replaces freeform add/update role inputs with dropdown-driven Add agent / Remove agent flow.
• Supports mapping installed team agents (-) back to role names in recipe frontmatter.
• Includes a 'Custom role…' option.
• Also cherry-picks lint warning cleanup so

clawkitchen@0.1.0 lint
eslint is clean.

Verification:

clawkitchen@0.1.0 lint
eslint

clawkitchen@0.1.0 build
next build

▲ Next.js 16.1.6 (Turbopack)

Creating an optimized production build ...
✓ Compiled successfully in 2.1s
Running TypeScript ...
Collecting page data using 7 workers ...
Generating static pages using 7 workers (0/41) ...
Generating static pages using 7 workers (10/41)
Generating static pages using 7 workers (20/41)
Generating static pages using 7 workers (30/41)
✓ Generating static pages using 7 workers (41/41) in 2.5s
Finalizing page optimization ...

Route (app)
┌ ○ /
├ ○ /_not-found
├ ƒ /agents/[agentId]
├ ƒ /api/agents
├ ƒ /api/agents/[id]
├ ƒ /api/agents/add
├ ƒ /api/agents/file
├ ƒ /api/agents/files
├ ƒ /api/agents/identity
├ ƒ /api/agents/skills
├ ƒ /api/agents/skills/install
├ ƒ /api/agents/update
├ ƒ /api/channels/bindings
├ ƒ /api/cron/delete
├ ƒ /api/cron/job
├ ƒ /api/cron/jobs
├ ƒ /api/cron/recipe-installed
├ ƒ /api/goals
├ ƒ /api/goals/[id]
├ ƒ /api/goals/[id]/promote
├ ƒ /api/ids/check
├ ƒ /api/marketplace/recipes
├ ƒ /api/marketplace/recipes/[slug]
├ ƒ /api/recipes
├ ƒ /api/recipes/[id]
├ ƒ /api/recipes/clone
├ ƒ /api/recipes/delete
├ ƒ /api/recipes/team-agents
├ ƒ /api/scaffold
├ ƒ /api/settings/cron-installation
├ ƒ /api/skills/available
├ ƒ /api/teams/file
├ ƒ /api/teams/files
├ ƒ /api/teams/meta
├ ƒ /api/teams/remove-team
├ ƒ /api/teams/skills
├ ƒ /api/teams/skills/install
├ ƒ /api/tickets/move
├ ○ /channels
├ ○ /cron-jobs
├ ○ /goals
├ ƒ /goals/[id]
├ ○ /goals/new
├ ○ /recipes
├ ƒ /recipes/[id]
├ ○ /settings
├ ƒ /teams/[teamId]
├ ○ /tickets
└ ƒ /tickets/[ticket]

○ (Static) prerendered as static content
ƒ (Dynamic) server-rendered on demand

Ticket: #0075