Add PR triage GitHub workflow

[Travior]

General structure of the script:

   run
   ├─ loadConfig
   ├─ reconcilePullRequest  // main classification logic lies here
   │  ├─ classifyPullRequest
   │  └─ markVerified / markUnverified
   │     └─ setClassificationLabels
   └─ sweep
      └─ reconcilePullRequest

Things to especially double check:

• default configuration we have now (e.g. 7 days until auto close...)
• wording in messages

[cloudflare-workers-and-pages]

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	docs	0671ba9	Commit Preview URL Branch Preview URL	Aug 13 2026, 11:05 AM

[Travior]

Before we would merge this we need to create the remaining labels. Right now they are: unverified and issue-approved