feat: add city/state/country to complex, new settings page with sidebar, and Biome linting

- Added city, state, and country optional fields to Complex model
- Updated onboarding to include optional location fields
- Created new settings page with sidebar navigation (Datos del Complejo, Canchas)
- Replaced ESLint with Biome for frontend and backend linting
- Added parallel dev script with concurrently
- Migrated register-routes to use direct app.route() pattern

biome.json

@@ -0,0 +1,66 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "correctness": {
+        "noUnusedVariables": "warn",
+        "useExhaustiveDependencies": "off"
+      },
+      "suspicious": {
+        "noExplicitAny": "off",
+        "noArrayIndexKey": "off",
+        "noMisleadingCharacterClass": "off"
+      },
+      "style": {
+        "useImportType": "off",
+        "noNonNullAssertion": "off"
+      },
+      "a11y": {
+        "useFocusableInteractive": "off",
+        "useSemanticElements": "off"
+      }
+    }
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineWidth": 100
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "semicolons": "always",
+      "trailingCommas": "es5"
+    }
+  },
+  "json": {
+    "formatter": {
+      "indentStyle": "space",
+      "indentWidth": 2
+    }
+  },
+  "files": {
+    "ignore": [
+      "node_modules",
+      "dist",
+      "build",
+      "generated",
+      ".next",
+      "coverage",
+      "**/tsconfig*.json",
+      "**/tsconfig/**/*.json",
+      "routeTree.gen.ts"
+    ]
+  }
+}