fix: bank display showing 1 instead of 0 + build fixes

- Removed 'e.bank||1' falsy trap (was converting bank 0 to 1)
- Fixed TypeScript errors: cp guard, unused vars, path aliases
- Added base: '/ui/' to vite config for correct asset paths
- Bank persistence already implemented (localStorage pedal-footswitch-bank)
- Rebuilt and deployed to src/web/ui-dist/

ui/tsconfig.app.json

@@ -6,6 +6,7 @@
     "module": "esnext",
     "types": ["vite/client"],
     "skipLibCheck": true,
+    "ignoreDeprecations": "6.0",
 
     /* Bundler mode */
     "moduleResolution": "bundler",
@@ -14,6 +15,10 @@
     "moduleDetection": "force",
     "noEmit": true,
     "jsx": "react-jsx",
+    "baseUrl": ".",
+    "paths": {
+      "@/*": ["./src/*"]
+    },
 
     /* Linting */
     "noUnusedLocals": true,