Error: Route "" used `searchParams.__sentry_skip_normalization__`. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis 

## Route Navigation Errors with sendDefaultPii Configuration

### Is there an existing issue for this?

- [x] I have checked for existing issues https://.com/getsentry/sentry-javascript/issues
- [x] I have reviewed the documentation https://docs.sentry.io/
- [x] I am using the latest SDK release https://.com/getsentry/sentry-javascript/releases

### How do you use Sentry?

Sentry Saas (sentry.io)

### Which SDK are you using?

@sentry/nextjs

### SDK Version

9.28.0

### Framework Version

React 19 and Next 15.3.3

### Link to Sentry event

_No response_

### Reproduction Example/SDK Setup

## Environment
- **Package**: @sentry/nextjs ( 9.28.0)
- **Framework**: Next.js 15
- **Configuration Files**: `sentry.edge.config.ts` and/or `sentry.server.config.ts`

## Issue Description
After updating to the latest version of `@sentry/nextjs` and adding the `sendDefaultPii: true` configuration option, navigation between routes triggers invalid parameter-related errors that prevent proper route transitions.

`sentry.edge.config.ts`
```typescript
// This file configures the initialization of Sentry for edge features (middleware, edge routes, and so on).
// The config you add here will be used whenever one of the edge features is loaded.
// Note that this config is unrelated to the Vercel Edge Runtime and is also required when running locally.
// https://docs.sentry.io/platforms/javascript/guides/nextjs/

import { env } from '@/env';
import * as Sentry from '@sentry/nextjs';

Sentry.init({
  dsn: env.NEXT_PUBLIC_SENTRY_DSN,
  environment: env.NEXT_PUBLIC_APP_ENV,

  // Adds request headers and IP for users, for more info visit:
  // https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/options/#sendDefaultPii
  sendDefaultPii: true,

  // Define how likely traces are sampled.
  tracesSampleRate: env.NEXT_PUBLIC_APP_ENV === 'production' ? 0.1 : 0.6,

  // Setting this option to true will print useful information to the console while you're setting up Sentry.
  debug: false,
});
```

`sentry.server.config.ts`
```typescript
// This file configures the initialization of Sentry on the server.
// The config you add here will be used whenever the server handles a request.
// https://docs.sentry.io/platforms/javascript/guides/nextjs/

import { env } from '@/env';
import * as Sentry from '@sentry/nextjs';

Sentry.init({
  dsn: env.NEXT_PUBLIC_SENTRY_DSN,
  environment: env.NEXT_PUBLIC_APP_ENV,

    // Adds request headers and IP for users, for more info visit:
  // https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/options/#sendDefaultPii
  sendDefaultPii: true,

  // Define how likely traces are sampled.
  tracesSampleRate: env.NEXT_PUBLIC_APP_ENV === 'production' ? 0.1 : 0.6,

  // Setting this option to true will print useful information to the console while you're setting up Sentry.
  debug: false,
});
```

### Steps to Reproduce

## Steps to Reproduce
1. Update `@sentry/nextjs` to the latest version
2. Add the following configuration to `sentry.edge.config.ts` or `sentry.server.config.ts`:
   ```typescript
   // Adds request headers and IP for users, for more info visit:
   // https://docs.sentry.io/platforms/javascript/guides/nextjs/configuration/options/#sendDefaultPii
   sendDefaultPii: true,
   ```
3. Navigate between routes in the Next.js application
4. Observe route navigation errors related to invalid parameters

## Workaround
The issue is resolved by either:
- Downgrading `@sentry/nextjs` to a previous version, OR
- Removing the `sendDefaultPii: true` configuration

## Additional Context
- The errors specifically mention issues with route parameters
- The parameter errors appear to be false positives as they disappear when the Sentry configuration is modified
- This suggests the `sendDefaultPii` option may be interfering with Next.js's internal route parameter handling or validation



### Expected Result

## Expected Behavior
Route navigation should work normally without throwing parameter-related errors when `sendDefaultPii` is enabled.

## Impact
This prevents users from enabling PII collection for better debugging context while maintaining stable route navigation in their Next.js applications.

### Actual Result

## Actual Behavior
Navigation between routes fails with parameter validation errors that appear to be invalid/spurious.

```bash
> next dev -p 3012

   ▲ Next.js 15.3.3
   - Local:        http://localhost:3012
   - Network:      http://192.168.0.160:3012
   - Environments: .env
   - Experiments (use with caution):
     · clientTraceMetadata

 ✓ Starting...
 ○ Compiling /instrumentation ...
 ✓ Compiled /instrumentation in 9.5s (938 modules)
 ✓ Ready in 16.2s
 ○ Compiling /middleware ...
 ✓ Compiled /middleware in 1673ms (624 modules)
 ○ Compiling /[locale]/partner/[slug] ...
 ✓ Compiled /[locale]/partner/[slug] in 13s (3514 modules)
 GET /en/partner/kwc-singapore 200 in 18157ms
Error: Route "/[locale]/partner/[slug]" used `...params` or similar expression. `params` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `params.locale`. `params` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `params.slug`. `params` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `searchParams.__isVue`. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `searchParams._isVue`. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `searchParams.__sentry_skip_normalization__`. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `searchParams.__sentry_override_normalization_depth__`. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
Error: Route "/[locale]/partner/[slug]" used `Object.keys(searchParams)` or similar. `searchParams` should be awaited before using its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
    at Array.forEach (<anonymous>)
```