Remove library /adi805/agentic-principles from index (owner request)

Removal request for the library /adi805/agentic-principles.

• Submitted via the add-repo API on 2026-09-24 (~14:03 UTC) by me, the repo owner (adi805).
• The GitHub repo has since been made private, so re-crawling is no longer possible, but the library entry (metadata + 71 indexed snippets, state: finalized) is still listed and served.
• Please remove the library entry and all associated indexed content from Context7 entirely.

Reason: the repo was submitted prematurely; its content is not intended for public distribution. I'm aware of the owner-side "Disallow Indexing" opt-out in the admin panel, but I cannot complete the claim flow right now, and per the precedent in #1605 I'm requesting removal here as the owner.

Happy to verify ownership in whatever way is needed (the private repo can be made briefly public for a claim flow, or verified via a commit containing a nonce, just ask).