Add per-project full permissions toggle for --dangerously-skip-permissions

New projects default to standard permission mode (Claude asks before acting).
Existing projects default to full permissions ON, preserving current behavior.
UI toggle uses red/caution styling to highlight the security implications.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/src/lib/types.ts

@@ -26,6 +26,7 @@ export interface Project {
   openai_compatible_config: OpenAiCompatibleConfig | null;
   allow_docker_access: boolean;
   mission_control_enabled: boolean;
+  full_permissions: boolean;
   ssh_key_path: string | null;
   git_token: string | null;
   git_user_name: string | null;