- SpawnArchitectDropdown: toast.success on spawn, toast.error on failure
- ActionMenu: toast.success on archive, toast.error on failure
- CreateInitiativeDialog: toast.success on creation
- Inbox: toast.success/error for resumeAgent and respondToMessage mutations
- Replace all console.error-only mutation error handling with user-visible toasts
- Install shadcn Dialog, Input, Label, Textarea components
- Move from @/ literal dir to src/components/ui/ (known shadcn CLI issue)
- CreateInitiativeDialog: controlled dialog with name/description fields
- tRPC createInitiative mutation with loading/error states
- Form resets on open, validates name non-empty
