fix(mcp): reject invalid JSON-RPC ids before dispatch (#391) - #430

Queue entry conditions

• -draft [📌 queue requirement]
• any of [🔀 queue conditions]:
  • all of [📌 queue conditions of queue rule main]:
    • #approved-reviews-by>=1
    • github-review-approved [🛡 GitHub branch protection]
    • #review-threads-unresolved = 0 [🛡 GitHub branch protection]
    • base=main
    • label!=do-not-merge
    • any of [🛡 GitHub branch protection]:
      • check-success = Check PR title
      • check-neutral = Check PR title
      • check-skipped = Check PR title
    • any of [🛡 GitHub branch protection]:
      • check-success = Check & Clippy
      • check-neutral = Check & Clippy
      • check-skipped = Check & Clippy
    • any of [🛡 GitHub branch protection]:
      • check-success = DB Tests
      • check-neutral = DB Tests
      • check-skipped = DB Tests
    • any of [🛡 GitHub branch protection]:
      • check-success = Unit Tests
      • check-neutral = Unit Tests
      • check-skipped = Unit Tests
• -closed [📌 queue requirement]
• -conflict [📌 queue requirement]
• any of [📌 queue -> configuration change requirements]:
  • -mergify-configuration-changed
  • check-success = @mergify/Configuration changed
  • check-success = @mergify/Configuration has been deleted

You can queue this pull request now with @Mergifyio queue: it will enter the merge queue once these conditions match.