chore(deps): bump @openrouter/ai-sdk-provider from 2.9.1 to 3.0.0

Bumps [@openrouter/ai-sdk-provider](https://github.com/OpenRouterTeam/ai-sdk-provider) from 2.9.1 to 3.0.0.
- [Release notes](https://github.com/OpenRouterTeam/ai-sdk-provider/releases)
- [Changelog](https://github.com/OpenRouterTeam/ai-sdk-provider/blob/main/CHANGELOG.md)
- [Commits](OpenRouterTeam/ai-sdk-provider@2.9.1...3.0.0)

---
updated-dependencies:
- dependency-name: "@openrouter/ai-sdk-provider"
  dependency-version: 3.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

pnpm-lock.yaml

@@ -88,7 +88,7 @@ catalog:
   '@google/genai': 2.12.0
   '@mastra/core': 1.51.0
   '@next/env': 16.2.10
-  '@openrouter/ai-sdk-provider': 2.9.1
+  '@openrouter/ai-sdk-provider': 3.0.0
   '@polar-sh/sdk': 0.48.1
   '@streamdown/code': 1.1.1
   '@streamdown/math': 1.0.2